atypical
UK: /eɪˈtɪpɪkəl/ | US: /eɪˈtɪpɪkəl/
adj. not conforming to the usual type; irregular or unusual
adj. (biology) differing from the normal or expected form
The word "atypical" combines the Greek-derived prefix "a-" (meaning "not") with the root "typ" (from Greek "typos," meaning "type" or "model"), and the adjectival suffix "-ical." The prefix "a-" negates the root, giving the sense of "not typical." The suffix "-ical" standardizes it as an adjective. Historically, "typos" referred to a mark or impression, later evolving to mean a general pattern or standard. Thus, "atypical" literally means "not conforming to the standard type."
Her atypical approach to problem-solving often yields innovative results.
The patient exhibited atypical symptoms, confusing the doctors.
This flower has an atypical color pattern compared to others in its species.
His atypical career path took him from engineering to art.
The weather this winter has been atypical, with unusually high temperatures.