Adjective has 2 senses

• atypical(a = adj.all) untypical - not representative of a group, class, or type; "a class of atypical mosses"; "a group that is atypical of the target audience"; "atypical behavior is not the accepted type of response that we expect from children"



Antonym: typical
Derived form noun atypicality₁

• atypical(s = adj.all) irregular - deviating from normal expectations; somewhat odd, strange, or abnormal; "atypical clinical findings"; "atypical pneumonia"; "highly irregular behavior"; "these days large families are atypical"

Derived form noun atypicality₁