Breadcrumb Home > Thesaurus > A Synonyms of antiknock Find synonyms for: Noun 1. antiknock, compound, chemical compound usage: any of various compounds that are added to gasoline to reduce engine knocking Adjective 1. antiknock, antiknocking, leaded (vs. unleaded) usage: suppressing or eliminating engine knock in combustion engines; "antiknock properties"; "antiknock rating" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of antiknock (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: crepuscular Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language