abnormal

ab-nor-mal

adjective

Deviating from what is normal, standard, or expected; often undesirable.

"Her abnormal blood pressure readings concerned the doctor."

Thesaurus

Synonyms: kinky, atypical, freakish, unnatural, deviate, aberrant, antidromic, brachydactylic, brachydactylous, supernormal, defective, subnormal

Antonyms: normal