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adj.
deviating from normal expectations; somewhat odd, strange, or abnormal; "these days large families are atypical"; "atypical clinical findings"; "atypical pneumonia"; "highly irregular behavior"
adj.
deviating widely from a norm of physical or mental ability; used especially of children below normal in intelligence; "special educational provisions for exceptional children"
adj.
within normal everyday experience; common and ordinary; not strange; "familiar ordinary objects found in every home"; "a familiar everyday scene"; "a familiar excuse"; "a day like any other filled with familiar duties and experiences"