Breadcrumb Home > Thesaurus > O Synonyms of optimal Find synonyms for: Adjective 1. optimum, optimal, best (vs. worst) usage: most desirable possible under a restriction expressed or implied; "an optimum return on capital"; "optimal concentration of a drug" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of optimal (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: truculent Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language