validated Get Printable Handwriting (val-i-dat-ed) 4 syllables Learn It! Spelling Test Definition verb. 1 to prove valid or acceptable; verify; 2.to make valid by legal means. Example Sentence She validated the reports with direct evidence. Synonyms formalize; authorize; confirm; ratify Antonyms invalidate; annul; quash; void; avoid; nullify Share with your friends: