/ Thesaurus / K Synonyms of knock kneed Find synonyms for: Adjective1. knock-kneed, unfit (vs. fit)usage: having the knees abnormally close together and the ankles wide apartWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language