imperceptible C2 Topic:Describing Qualities US /ˌɪmpɝˈsɛptɪbəl/ See IPA manual Freq #52555 Meanings 1 adj So small, slight, or gradual that it cannot be noticed. There was an almost imperceptible drop in temperature as the sun set. Thesaurus Synonyms 1 adj · so small, slight, or... unperceivableimperceivableundistinguishable More insensibleundetectable ↔ Opposites perceptible Word family Derived forms imperceptibilityimperceptiblenessimperceptibly Etymology AI details Inherited from Middle English imperceptible, from Middle French imperceptible and its etymon Medieval Latin imperceptibilis. By surface analysis, im- + perceptible. *keh₂p- Proto-Indo-European imperceptible Middle English imperceptibilis la-med View etymology graph -> Topics Describing Qualities Word Formation & Derivatives External links Cambridge Dictionary Wiktionary Google Images # imperceptible **Type:** Word **Level:** C2 **Part of speech:** adj **IPA (US):** /ˌɪmpɝˈsɛptɪbəl/ **Frequency rank:** 52555 ## Meanings 1. So small, slight, or gradual that it cannot be noticed. ## Examples - There was an almost imperceptible drop in temperature as the sun set. ## Synonyms - imperceivable - insensible - undetectable - undistinguishable - unperceivable ## Antonyms - perceptible ## Derived Forms - imperceptibility - imperceptibleness - imperceptibly ## Roots and Affixes - Root: *keh₂p- - Root: imperceptible - Root: imperceptibilis ## Etymology Inherited from Middle English imperceptible, from Middle French imperceptible and its etymon Medieval Latin imperceptibilis. By surface analysis, im- + perceptible. ## AI Etymology Imperceptible is inherited from Middle English imperceptible, from Middle French imperceptible and its etymon Medieval Latin imperceptibilis. By surface analysis, im- + perceptible. The analysis is mainly morphological: the modern form is built from the named base and affix. Important recorded forms include *keh₂p- (Proto-Indo-European), imperceptible (Middle English), imperceptible (Middle French), and imperceptibilis (la-med). Current senses include so small, slight, or gradual that it cannot be noticed. The wider family includes derived forms such as imperceptibility, imperceptibleness, and imperceptibly. ## Topics - Describing Qualities - Word Formation & Derivatives markdown