atypical
adjective(a-typ-i-cal)
deviating from normal expectations; somewhat odd, strange, or abnormal
Examples:
These days large families are atypical.
Atypical clinical findings.
Atypical pneumonia.
atypical
adjective(a-typ-i-cal)
not representative of a group, class, or type
Examples:
A class of atypical mosses.
Atypical behavior is not the accepted type of response that we expect from children.