Atypic is an adjective used to describe something that is unusual or not typical. Some synonymous words for atypic include unconventional, unusual, abnormal, nonconformist, irregular, and different. Other synonyms include uncommon, peculiar, unique, unexpected, and uncommon. The word atypic can also be substituted with out of the ordinary, eccentric, offbeat, and distinctive. Each of these words can be used to describe something that deviates from the norm or is not a typical occurrence. Whether used in formal writing or daily conversations, choosing the right synonym for atypic can add variety and uniqueness to your language.