lean, little, weak, sparse, slim, tenuous, finespun, ticklish, unconvincing, strong, weakly, breakable, slight, friable, delicate, svelte, unsound, slender, flimsy, dainty, insubstantial, puny, unsubstantial, frail, fallible, thin, imperfect.
brittle (part of speech: adjective)
feeble (part of speech: adjective)
excitable (part of speech: adjective)
For light, though so fragile,
is perhaps the one thing of all that yields naught of itself as it faces immensity.
- "Wisdom and Destiny", Maurice Maeterlinck.
But his hands were old, delicate, fine and fragile;
and the lips beneath the drooping white mustache at times trembled, almost imperceptibly, with the generous sentiments that come with mellow age.
- "The Black Bag", Louis Joseph Vance.
Her emotions were very delicate, very fragile,
and enormously difficult to perceive.
- "Linda Condon", Joseph Hergesheimer.