2
energetic
2
hearty(adjective, strong, sound)
2
husky
2
lusty
2
muscular
2
sinewy
2
sound(adjective, strong)
1
fit
1
able-bodied
1
all-powerful
1
athletic
1
big-boned
1
big-chested
1
big-shouldered
1
broad-shouldered
1
buirdly
1
capable
1
cast-iron
1
chesty
1
competent
11 years ago|3.3k views|share |citing 
APASmart Define. (2015). frail thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/frail/thesaurus/antonyms
ChicagoSmart Define. 2015. "frail thesaurus" https://smartdefine.org/frail/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2015, frail thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/frail/thesaurus/antonyms>.
MLASmart Define. "frail thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/frail/thesaurus/antonyms>