breakable, brittle, brittle as glass, capricious, changeable, cheap-jack, cobwebby, corruptible, crackable, crisp, crispy, crumbly, crushable, dainty, deciduous, decrepit, delicate, delicately weak, dying, effeminate, ephemeral, evanescent, fading, feeble, fickle, fissile, fleeting, flimsy, flitting, fly-by-night, flying, fracturable, frail, frangible, friable, fugacious, fugitive, gimcrack, gimcracky, gossamery, impermanent, impetuous, impulsive, inconstant, infirm, insubstantial, jerry, jerry-built, lacerable, light, lightweight, momentary, mortal, mutable, namby-pamby, nondurable, nonpermanent, papery, passing, pasteboardy, perishable, puny, rickety, scissile, shaky, shatterable, shattery, shivery, short, short-lived, sissified, sleazy, slight, splintery, tacky, temporal, temporary, tenuous, thin, transient, transitive, transitory, undurable, unenduring, unsound, unstable, unsubstantial, volatile, vulnerable, weak, weakly, wispy, womanish
weakness, debility, atony, relaxation, languor, enervation, impotence, infirmity, effeminacy, feminality, fragility, flaccidity, inactivity, anaemia, bloodlessness, deficiency of blood, poverty of blood, declension of strength, loss of strength, failure of strength, delicacy, invalidation, decrepitude, asthenia, adynamy, cachexy, cachexia, sprain, strain, reed, thread, rope of sand, house of cards, softling, weakling, infant, youth, weak, feeble, debile, impotent, relaxed, unnerved sapless, strengthless, powerless, weakly, unstrung, flaccid, adynamic, asthenic, nervous, soft, effeminate, feminate, womanly, frail, fragile
, shattery, flimsy, unsubstantial, insubstantial, gimcrack, gingerbread, rickety, creaky, creaking, cranky, craichy, drooping, tottering, broken, lame, withered, shattered, shaken, crazy, shaky, palsied, decrepit, languid, poor, infirm, faint, faintish, sickly, dull, slack, evanid, spent, short-winded, effete, weather-beaten, decayed, rotten, worn, seedy, languishing, wasted, washy, laid low, pulled down, the worse for wear, unstrengthened, unsupported, unaided, unassisted, aidless, defenseless, cantilevered (support), on its last legs, weak as a child, weak as a baby, weak as a chicken, weak as a cat, weak as a rat, weak as water, weak as water gruel, weak as gingerbread, weak as milk and water, colorless, non sum qualis eram.
brittleness, fragility, friability, frangibility, fissibility, house of cards, house of glass, brittle, brash, breakable, weak, frangible, fragile
, frail, gimcrack, shivery, fissile, splitting, lacerable, splintery, crisp, crimp, short, brittle as glass.