unexpected /ʌnɪkˈspɛktɪd/adjective 1noun 1forms 3 adjective1 •coming as a surprise because nobody thought it would happenCertainly unexpected. The P[awn] is overprotected to the best taste of a Nimzowitsch devotee, and there seems to be no drastic weakness in White's camp to justify this intrusion. — 1936 noun1 •(rare) Someone or something unexpected. formsunexpecteds · more unexpected · most unexpected