anachronism Get Printable Handwriting (a-nach-ro-nism) 4 syllables Learn It! Spelling Test Definition noun. anything that is or seems to be out of its proper time in history Example Sentence A black and white television is an anachronism today. Synonyms out-of-place; out-of-date; anomaly; misdating Antonyms current; up-to-date Share with your friends: