having delicate health; not robust; weak: My grandfather is rather frail now.
easily broken or destroyed; fragile.
morally weak; easily tempted.
Older Slang: Sometimes Offensive. a term used to refer to a girl or woman.
Origin of frail1
1300–50;Middle Englishfrail(e), frel(e) < Old French < Latinfragilisfragile
Related formsfrail·ly, adverbfrail·ness, noun
1, 2. feeble; breakable, frangible. Frail,brittle,fragile imply a delicacy or weakness of substance or construction. Frail applies particularly to health and immaterial things: a frail constitution; frail hopes.Brittle implies a hard material that snaps or breaks to pieces easily: brittle as glass.Fragile implies that the object must be handled carefully to avoid breakage or damage: fragile bric-a-brac.
mid-14c., "morally weak," from Old French fraile "weak, frail, sickly, infirm" (Modern French frêle), from Latin fragilis "easily broken" (see fragility). Sense of "liable to break" is first recorded in English late 14c. The U.S. slang noun meaning "a woman" is attested from 1908.