Word Formation & Derivatives

operable C2+

/ˈɑpərəbəl/ able to be used or operated; suitable for surgery M S

operant C2+

/ˈɑpərənt/ producing effects; relating to behavior modified by its consequences M S

opposer C2+

/əˈpoʊzər/ one who opposes or resists something M S

oppressive C2+

/əˈprɛsɪv/ unjustly harsh or burdensome; weighing heavily on the spirit M S

origination C2+

/əˌrɪdʒɪˈneɪʃən/ the act of bringing something into existence; a beginning M S

outgoing C2+

/ˈaʊtˌɡoʊɪŋ/ friendly and sociable; leaving office or departing M S

outlandish C2+

/aʊtˈlændɪʃ/ bizarre, strange, or unfamiliar in a striking way M S

overstate C2+

/ˌoʊvərˈsteɪt/ to express or describe something as more than it really is M S

pacifist C2+

/ˈpæsɪfɪst/ a person who opposes war and violence on principle M S

pacify C2+

/ˈpæsɪˌfaɪ/ to calm or soothe; to quell unrest or anger M S

pained C2+

/peɪnd/ showing or feeling hurt, distress, or annoyance M S

painless C2+

/ˈpeɪnləs/ causing no pain; involving little effort or difficulty M S

palpable C2+

/ˈpælpəbəl/ able to be touched or felt; so intense as to seem tangible M S

paucity C2+

/ˈpɔsɪti/ the presence of something in only small or insufficient quantities M S

peerless C2+

/ˈpɪrləs/ having no equal; matchless M S

pendant C2+

/ˈpɛndənt/ a piece of jewelry that hangs from a chain worn around the neck M S

penetration C2+

/ˌpɛnɪˈtreɪʃən/ the action of entering, piercing, or passing into something M S

peopleless C2+

/ˈpipəlləs/ devoid of people; unpopulated M S

perennial C2+

/pəˈrɛniəl/ lasting or recurring through many years; a plant living for years M S

perilous C2+

/ˈpɛrələs/ full of danger or risk M S

perpendicular C2+

/ˌpɜrpənˈdɪkjələr/ at a right angle to a given line or surface; exactly upright M S

philosophic C2+

/ˌfɪləˈsɑfɪk/ relating to philosophy; calm and rational in the face of difficulty M S

pitiless C2+

/ˈpɪtiləs/ showing no pity; merciless or relentless M S

plentiful C2+

/ˈplɛntɪfəl/ existing in great quantity; abundant M S

pliable C2+

/ˈplaɪəbəl/ easily bent without breaking; easily influenced M S

pliant C2+

/ˈplaɪənt/ bending readily; supple or easily influenced M S

plunder C2+

/ˈplʌndər/ to steal goods, typically by force in time of war or unrest M S

polished C2+

/ˈpɑlɪʃt/ smooth and shiny from rubbing; refined and accomplished M S

pornographic C2+

/ˌpɔrnəˈɡræfɪk/ relating to explicit sexual material intended to arouse M S

poser C2+

/ˈpoʊzər/ a puzzling question or problem; one who poses or affects a persona M S

posterior C2+

/pɑˈstɪriər/ situated at or toward the rear; the buttocks M S

potentate C2+

/ˈpoʊtənˌteɪt/ a ruler with great power; a monarch or sovereign M S

practicable C2+

/ˈpræktɪkəbəl/ able to be done or put into practice successfully M S

preceptor C2+

/prɪˈsɛptər/ a teacher or instructor, especially a tutor or mentor M S

precipitant C2+

/prɪˈsɪpɪtənt/ a substance causing a precipitate; acting with sudden haste M S

precursor C2+

/prɪˈkɜrsər/ something that comes before and signals or leads to another M S

predisposition C2+

/ˌpridɪspəˈzɪʃən/ an inclination or tendency to a particular condition or behavior M S

princely C2+

/ˈprɪnsli/ befitting a prince; generous or lavish in scale M S

principality C2+

/ˌprɪnsɪˈpælɪti/ a state or territory ruled by a prince M S

privation C2+

/praɪˈveɪʃən/ a lack of the basic necessities or comforts of life M S

procrastinate C2+

/proʊˈkræstɪˌneɪt/ to delay or postpone action needlessly M S

prognostication C2+

/prɑɡˌnɑstɪˈkeɪʃən/ the act of foretelling or predicting future events M S

progressively C2+

/prəˈɡrɛsɪvli/ in a manner increasing steadily by stages or degrees M S

promptness C2+

/ˈprɑm(p)tnəs/ the quality of acting or responding quickly and without delay M S

propensity C2+

/prəˈpɛnsəti/ a natural inclination or tendency to behave in a particular way M S

provisional C2+

/prəˈvɪʒənəl/ arranged or existing for the present, likely to be changed later M S

proxy C2+

/ˈprɑksi/ a person authorized to act or vote on behalf of another M S

publican C2+

/ˈpʌblɪkən/ a person who owns or manages a pub M S

quandary C2+

/ˈkwɑndri/ a state of uncertainty or perplexity over a difficult choice M S

quieten C2+

/ˈkwaɪətən/ to make or become quiet or calm M S

reckoning C2+

/ˈrɛkənɪŋ/ the action of calculating, or a settling of accounts or consequences M S

redress C2+

/rɪˈdrɛs/ remedy or compensation for a wrong or grievance M S

refinement C2+

/rɪˈfaɪnmənt/ the process of improving something, or cultivated elegance of manner M S

regress C2+

/rɪˈɡrɛs/ to return to a former, usually worse or less developed state M S

relevancy C2+

/ˈrɛləvənsi/ the quality of being pertinent or connected to the matter at hand M S

reprehension C2+

/ˌrɛprɪˈhɛnʃən/ the act of reproving or expressing severe disapproval M S

reprobate C2+

/ˈrɛprəbeɪt/ an unprincipled or morally depraved person M S

repudiate C2+

/rɪˈpjudieɪt/ to refuse to accept or be associated with; to deny or reject M S

residency C2+

/ˈrɛzɪdənsi/ the fact of living in a place, or a period of specialized training M S

responsibly C2+

/rɪˈspɑnsəbli/ in a sensible, accountable, or trustworthy manner M S

restful C2+

/ˈrɛs(t)fəl/ giving a feeling of peace and relaxation; tranquil M S

richdom C2+

/ˈrɪtʃdəm/ an archaic word for the state of being rich; wealth or richness M S

rueful C2+

/ˈrufəl/ expressing regret or sorrow, often in a wry, resigned way M S

ruthful C2+

/ˈruθfəl/ an archaic word meaning full of sorrow or compassion; pitiful M S

salient C2+

/ˈseɪliənt/ most noticeable or important; prominent M S

sanctuary C2+

/ˈsæŋktʃuɛri/ a place of refuge, safety, or worship M S

sappy C2+

/ˈsæpi/ excessively sentimental; also, full of sap M S

scamper C2+

/ˈskæmpər/ to run with quick, light, hurried steps M S

schematic C2+

/skɪˈmætɪk/ represented in a simplified diagram showing structure or workings M S

scintillate C2+

/ˈsɪntəleɪt/ to sparkle or flash; to be brilliantly clever or animated M S

scrawny C2+

/ˈskrɔni/ unattractively thin and bony M S

selflessness C2+

/ˈsɛlfləsnəs/ the quality of caring more for others than for oneself M S

senate C2+

/ˈsɛnət/ a legislative or governing assembly, especially an upper house M S

sentience C2+

/ˈsɛnʃəns/ the capacity to feel, perceive, or experience sensations M S

serpent C2+

/ˈsɜrpənt/ a snake, especially a large or symbolically evil one M S

shortcoming C2+

/ˈʃɔrtˌkʌmɪŋ/ a fault or failure to meet a standard; a defect M S

shorten C2+

/ˈʃɔrtən/ to make or become shorter in length, duration, or extent M S

sincerely C2+

/sɪnˈsɪrli/ in a genuine, honest, heartfelt manner M S

sinful C2+

/ˈsɪnfəl/ wicked, immoral, or constituting a sin M S

skinny C2+

/ˈskɪni/ very thin or lean; also, inside information (slang) M S

sonorous C2+

/səˈnɔrəs/ having a deep, full, resonant sound M S

sophistication C2+

/səˌfɪstɪˈkeɪʃən/ refined worldly knowledge, or complexity of design M S

sorriness C2+

/ˈsɑrinəs/ the state of being sorrowful, regretful, or pitifully poor M S

sorrowful C2+

/ˈsɑroʊfəl/ feeling or expressing deep sadness or grief M S

southerly C2+

/ˈsʌðərli/ situated toward or coming from the south M S

sparkler C2+

/ˈspɑrklər/ a hand-held firework that emits bright sparks M S

specious C2+

/ˈspiʃəs/ superficially plausible but actually wrong or misleading M S

specter C2+

/ˈspɛktər/ a ghost, or a haunting threatening prospect M S

spiciness C2+

/ˈspaɪsinəs/ the quality of being pungent, hot, or piquant in flavor M S

sporadically C2+

/spəˈrædɪkli/ occurring at irregular intervals; occasionally and scattered M S

stagy C2+

/ˈsteɪdʒi/ excessively theatrical or artificial in manner M S

stationary C2+

/ˈsteɪʃəˌnɛri/ not moving; fixed in one place M S

stillness C2+

/ˈstɪlnəs/ the absence of movement or sound; calm quiet M S

strained C2+

/streɪnd/ showing signs of tension or effort; not relaxed or natural M S

streetcar C2+

/ˈstritˌkɑr/ a passenger vehicle running on rails along city streets; a tram M S

stupidity C2+

/stuˈpɪdəti/ the quality of lacking intelligence or good sense M S