/ Dictionary / Index L low blow: Meaning and Definition of Find definitions for: low' blow' Pronunciation: [key] (in boxing) an illegal blow below the waist of an opponent. an unfair or unsportsmanlike criticism or attack. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. low blood pressure low board Related Content Daily Word Quiz: reluctant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language