noun
1.
Synonyms: deviation 1, deflection, departure, divergence, diversion, turning
Related Word: abnormality; mistake, slip; curiosity, oddity, prodigy, rarity
Contrasted words: average, mean, norm; normality
Antonyms: conformity; regularity
2.
Synonyms: insanity 1, alienation, derangement, distraction, insaneness, lunacy, madness, psychopathy, unbalance
Antonyms: soundness ( of mind )