atypical vs uncharacteristic

atypical and uncharacteristic both are adjectives.

Word	Noun	Adjective	Verb	Adverb
atypical	No	Yes	No	No
uncharacteristic	No	Yes	No	No

atypical (adjective)	uncharacteristic (adjective)
not representative of a group, class, or type	distinctive and not typical
deviating from normal expectations; somewhat odd, strange, or abnormal