abnormal
/əbˈnɔːm(ə)l
/adjective
Deviating from what is normal or usual, typically in a way that is undesirable or worrying: the illness is recognizable from the patient’s abnormal behaviour...
- Every episode marked him, though there is no evidence of any abnormal behaviour.
- His life has been so abnormal it is no surprise that he has such unusual views.
- The boy told the court his behaviour had been abnormal and not the sort of thing he wanted to do in the future.
Synonyms
unusual, uncommon, atypical, untypical, non-typical, unrepresentative, rare, isolated, irregular, anomalous, deviant, deviating, divergent, wayward, aberrant, freak, freakish;
strange, odd, peculiar, curious, bizarre, weird, queer;
eccentric, idiosyncratic, quirky;
unexpected, unfamiliar, unconventional, surprising, unorthodox, singular, exceptional, extraordinary, out of the ordinary, out of the way;
unnatural, perverse, perverted, twisted, warped, corrupt, unhealthy, distorted, malformed;
British out of the common
informal funny, oddball, off the wall, wacky, wacko, way out, freaky, kinky
Origin
Mid 19th century: alteration (by association with Latin abnormis 'monstrous') of 16th-century anormal, from French, variant of anomal, via Latin from Greek anōmalos (see anomalous).