untypical

not representative of a group, class, or type; "a group that is atypical of the target audience"; "a class of atypical mosses"; "atypical behavior is not the accepted type of response that we expect from children"

जानवर में किसी असामान्यता का होना जिससे वे असामान्य दिखते हैं.

That laugh was untypical of her.