Synonyms For "Abnormal" :

2 syllables:

freakish, insane, kinky

3 syllables:

aberrant, defective, deviant, deviate, perverted, subnormal

4 syllables:

anomalous, antidromic, atypical, irregular, supernormal, unnatural, vicarious

5 syllables:

brachydactylic, brachydactylous