insignificant /ˌɪnsɪɡˈnɪfɪkənt/adjective 2noun 1forms 3 adjective2 •Not significant; not important, inconsequential, or having no noticeable effect.Such things are insignificant details compared to the main goal. •Without meaning; not signifying anything. noun1 •Someone or something that is insignificant. formsinsignificants · more insignificant · most insignificant