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adj. brit·tler, brit·tlest
a. Likely to break, snap, or crack, as when subjected to pressure: brittle bones.
b. Easily damaged or disrupted; fragile: a brittle friendship. See Synonyms at fragile.
a. Difficult to deal with; snappish: a brittle disposition.
b. Lacking warmth of feeling; cold: a reputation for being brittle and aloof.
3. Brilliantly sharp, as in percussive sound.
b. Fleeting; transitory.
A confection of caramelized sugar to which nuts are added: walnut brittle.
[Middle English britel, probably from Old English *brytel, from bryttian, to shatter.]
brit′tle·ly (brĭt′l-ē) adv.