From WordNet (r) 2.0 (August 2003) [wn]:
fragile
adj 1: easily broken or damaged or destroyed; "a kite too delicate
to fly safely"; "fragile porcelain plates"; "fragile
old bones"; "a frail craft" [syn: delicate, frail]
2: vulnerably delicate; "she has the fragile beauty of youth"
3: lacking solidity or strength; "a flimsy table"; "flimsy
construction"; "a fragile link with the past" [syn:
flimsy]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Fragile \Frag"ile\, a. [L. fragilis, from frangere to break; cf.
F. fragile. See Break, v. t., and cf. Frail, a.]
Easily broken; brittle; frail; delicate; easily destroyed.
[1913 Webster]
The state of ivy is tough, and not fragile. --Bacon.
Syn: Brittle; infirm; weak; frail; frangible; slight. --
Frag"ile*ly, adv.
[1913 Webster]
From The Free On-line Dictionary of Computing (19 Sep 2003) [foldoc]:
fragile
brittle
From Jargon File (4.4.4, 14 Aug 2003) [jargon]:
fragile
adj.
Syn brittle.