delicate, fragile, frail -- (easily broken or damaged or destroyed; "a kite too delicate to fly safely"; "fragile porcelain plates"; "fragile old bones"; "a frail craft")
fragile -- (vulnerably delicate; "she has the fragile beauty of youth")
flimsy, fragile, slight, tenuous, thin -- (lacking substance or significance; "slight evidence"; "a tenuous argument"; "a thin plot"; a fragile claim to fame")
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