oddity oddity /ˈɑːdəti/

noun

1. Something unusual -- perhaps worthy of collecting  ( curiosity , oddity , oddment , curio , peculiarity , rarity )
   something unusual -- perhaps worthy of collecting
   
2. A strange attitude or habit  ( crotchet , oddity , queerness , quirk , quirkiness )
   a strange attitude or habit
   
3. Eccentricity that is not easily explained  ( oddity , oddness )
   eccentricity that is not easily explained