Breadcrumb Home > Thesaurus > F Synonyms of fastball Find synonyms for: Noun 1. fastball, heater, smoke, hummer, bullet, pitch, delivery usage: (baseball) a pitch thrown with maximum velocity; "he swung late on the fastball"; "he showed batters nothing but smoke" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of fastball (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. The Book of 1 Corinthians: Summary Current Events This Week: June 2023 Languages Spoken in Each Country of the World Aesop's Fables: Aesop's Fables Milestones in Environmental Protection The 12 Labors of Hercules (In Order) ✖ Related Content Daily Word Quiz: ailurophobia Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language