arrant C2+

/ˈæɹənt/ utter and complete, used to emphasize something bad

err C2+

/ɜr/ to make a mistake; to be wrong

errant C2+

/ˈɛrənt/ straying from the proper course or standards; wandering

erratic C2+

/əˈrætɪk/ irregular or unpredictable in movement, behavior, or quality

erroneous C2+

/ɪˈroʊniəs/ wrong; containing or based on error

erroneously C2+

/ɪˈroʊniəsli/ in a mistaken or incorrect manner

unerring C2+

/ʌnˈɜrɪŋ/ consistently accurate and never making a mistake