Synonyms of vigorous in English:

vigorous


See definition of vigorous

adjective

1‘the child was strong and vigorous’

SYNONYMS
robust, healthy, in good health, hale and hearty, strong, strong as an horse, strong as an lion, strong as an ox, sturdy, fine, fit, in good condition, in tip-top condition, in good shape, in good trim, in good kilter
hardy, tough, athletic, strapping, able-bodied
bouncing, thriving, flourishing, blooming
energetic, lively, active, spry, sprightly, perky, playful, jaunty, vivacious, animated, spirited, high-spirited, dynamic, vibrant, full of life, vital, sparkling, effervescent, zestful, buoyant, tireless, indefatigable
informal go-getting, zippy, peppy, bouncy, upbeat, full of vim, full of beans, raring to go, bright-eyed and bushy-tailed, in the pink, fit as a fiddle
Northern English informal wick
North American informal chipper
ANTONYMS

frail, weak

2‘a vigorous defence of government policy’

SYNONYMS
strenuous, powerful, potent, forceful, forcible, spirited, mettlesome, determined, resolute, aggressive, eager, keen, active, enthusiastic, zealous, ardent, fervent, vehement, intense, intensive, passionate, fiery, wild, unrestrained, uncontrolled, unbridled
tough, blunt, hard-hitting, pulling no punches
informal all-out, punchy, in-your-face
ANTONYMS

weak, feeble