say it: ay-TIP-i-kuhl
atypical is an adjective meaning "not representative of a group, class, or type". It carries 2 recorded senses.
not representative of a group, class, or type
“a class of atypical mosses”
“atypical behavior is not the accepted type of response that we expect from children”
deviating from normal expectations; somewhat odd, strange, or abnormal
“these days large families are atypical”
“atypical clinical findings”
“atypical pneumonia”
“highly irregular behavior”
Definitions, synonyms and semantic relations for atypical come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.