adjective
1.
marked by good well-developed musculature
his arms were lean but muscular
Synonyms: fibrous, ropy, sinewy, stringy, wiry
Related Word: flexible, elastic, resilient, springy, supple
Contrasted words: flabby, flaccid, flimsy, floppy, limp, sleazy; feeble, weak
2.
strong and powerful in build or action
a muscular lad who could wield an ax like a man
Synonyms: athletic, brawny, sinewy; compare strong 1
Related Word: stalwart, stout, strong, sturdy; well-built, well-knit, well-set; beefy, burly, husky; Herculean, mighty, powerful
Contrasted words: faint, fragile, frail; delicate, feeble, weak; ||pindling, puny, slight