robust Antonyms

frail rickety thin unfit unpowerful unsecure unsound unwell valetudinary washable tasteless subtle sallowish sapless sick sickened sickish sickly sinewless soft strengthless watery weak weakened sick as a dog unhardened at Death's door as sick as a dog not healthy weak as a baby as sick as a parrot as weak as a baby as weak as a kitten quadriplegic out of sorts unhealthy run down under the weather rheumatoid airsick carsick black-and-blue malnourished sick call seriously ill refined afflicted disabled diseased dissuasive