at length at·length fairly common adverb 1. after a long period of time or an especially long delay “at length they arrived” Synonymsfinallyeventuallyat length 2. in a lengthy or prolix manner “the argument went on lengthily” “she talked at length about the problem” Synonymslengthilyat length Related words Pertaining to drawn-out WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
