Synonyms for atypical

Adjective

1. atypical (vs. typical), untypical, unrepresentative, abnormal, uncharacteristic#1, uncharacteristic of

usage: deviating from or not conforming to type; "atypical behavior..not the accepted type of response that we expect from children"- G.E.Gardner

2. atypical, irregular, abnormal (vs. normal)

usage: deviating from what is usual or common or to be expected; often somewhat odd or strange; "these days large families are atypical"; "highly irregular behavior"

3. atypical, uncharacteristic (vs. characteristic), uncharacteristic of

usage: not conforming to type; "showed atypical agility"