- 1[countable] a strange or unusual feature or habit a physical peculiarity He was strongly attracted by her peculiarities of dress and behavior.
- 2 [countable] a feature that only belongs to one particular person, thing, place, etc. synonym characteristic the cultural peculiarities of Americans A sharp ringing in the ears is a peculiarity of the disease. The fish are dependent for survival on the peculiarities of the environment that they live in.
- 3[uncountable] the quality of being strange or unusual