Synonym word of on the ball:

active, all ears, attentive, bright, cagey, careful, clever, good hands, heads up, intelligent, lively, observant, on guard, on one's toes, on the job, on the lookout, on the stick, perceptive, quick, ready, sharp, spirited, vigilant, watchful, wise, with it


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Synonyms:  A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Popular