Synonyms and Antonyms of flail
- He started to flail his arms wildly when he spied a bat in the house.
- The fish's tail flailed the water.
bash, baste, bat, batter, beat, belabor, belt, bludgeon, buffet, bung, drub, hammer, lace, lambaste (or lambast), lather, lick, mangle, maul, paddle, pelt, pommel, pound, pummel, rough, slate, slog, thresh, thump, tromp, whop (or whap), whup, work over
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