Synonyms for Robust:

adj.

able-bodied (adjective)
firm, healthy.
athletic (adjective)
energetic, strong.
brawny (adjective)
beefy, burly, stalwart.
concentrated (adjective)
rich.
earthy (adjective)
unrefined.
firm (adjective)
durable.
fit (adjective)
wholesome.
healthy (adjective)
chipper, fit, full-bodied, hale, hardy, healthy, lively, salubrious, spry, wholesome, energetic, hearty, sound, vigorous, vital.
healthy, strong (adjective)
able-bodied, athletic, brawny, fit, full-bodied, hale, hardy, hearty, husky, lusty, muscular, potent, powerful, rugged, sinewy, sound, stout, strapping, sturdy, tough, vigorous, vital.
powerful (adjective)
high-powered.
strong (adjective)
brawny, energetic, firm, formidable, husky, mettlesome, mighty, muscular, potent, powerful, sinewy, stable, stout, strong, sturdy, tough, vigorous, virile, vital, heavy-duty.
vigorous (adjective)
red-blooded.
well (adjective)
solid as a rock.

n.

fine, normal. able-bodied, acid, acidic, astringent, bitter, bittersweet, brackish, chocolate, fiery, flavored, lusty, red-blooded, chocolatey. ambitious, athletic, competitive, dedicated, determined, driven, insistent, motivated, persistent, purposeful, sedulous. durable, heavy-duty, irresistible, stubborn, solid as a rock. effective, efficient, functional, helpful, high-powered, operative, practical, useful, valuable, worthwhile. robust (noun)
beefy, big-boned, big-chested, big-shouldered, broad-shouldered, buirdly, burly, chesty, full-bodied, hardy, heavy-armed, husky, iron, rich, rugged, square-built, square-shouldered, stalwart, stout, strapping, sturdy, tasteful, unrefined, vigorous, Cast iron.

Other synonyms:

fine, irresistible, normal. able-bodied, durable, heavy-duty. stubborn. cast-iron
Cast iron.
hearty
lusty.
muscular
athletic.
unrefined
unrefined.
Other relevant words:
able-bodied, acid, acidic, ambitious, astringent, athletic, beefy, big-boned, big-chested, big-shouldered, bitter, bittersweet, brackish, broad-shouldered, buirdly, burly, chesty, chocolate, competitive, dedicated, determined, driven, durable, effective, efficient, fiery, fine, flavored, functional, hearty, heavy-armed, heavy-duty, helpful, high-powered, insistent, iron, irresistible, lusty, motivated, normal, operative, persistent, practical, purposeful, red-blooded, rich, rugged, sedulous, sound, square-built, square-shouldered, stalwart, strapping, stubborn, tasteful, unrefined, useful, valuable, worthwhile, chocolatey.

Usage examples for robust

  1. But after a few seconds, the lady at the robust creature's right rose and walked into another salon; in a short time, the lady at her left likewise rose and vanished, and the fair Herminie was left alone on the divan. – San-Cravate; or, The Messengers; Little Streams by Charles Paul de Kock
  2. Plants are not equally robust Lady Valleys. – The Patrician by John Galsworthy
  3. He was well made, and more robust than usual with his countrymen. – History-of-the-Conquest-of-Peru-with-a-preliminary-view-of-the-civilization-of-the-Incas by Prescott, William Hickling