In an atypical manner; in a way that is not conforming to type or standard.
From 'atypical' + adverbial suffix '-ly' (from Old English '-lice,' originally meaning 'like' or 'in the manner of'). This adds the adverbial form to describe how something occurs in a non-standard way.
Adverbs are like the English language's way of saying 'but wait, there's a twist!'—and 'atypically' shows up whenever something breaks the pattern you'd normally expect. You'll hear doctors say 'the patient presented atypically' meaning the usual symptoms weren't there.
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