Something brittle is easily broken. Do you have brittle bones? Then no football or rugby for you.

Besides meaning easily fractured and emotionally cold, brittle is also a type of candy made of cooled sugar. To make peanut brittle, bake the ingredients on a cookie sheet then let the brittle cool into sheets which you break into pieces (and then eat — wreaking havoc with your braces). It's ok to use the adjective brittle freely to describe lots of things that will break easily — such as a heart, a theory, or a poorly equipped army.

Definitions of brittle
  1. adjective
    having little elasticity; hence easily cracked or fractured or snapped
    brittle bones”
    “glass is brittle
    synonyms: brickle, brickly
    capable of being broken or damaged
  2. adjective
    (of metal or glass) not annealed and consequently easily cracked or fractured
    synonyms: unannealed
    unhardened, untempered
    not brought to a proper consistency or hardness
  3. noun
    caramelized sugar cooled in thin sheets
    synonyms: toffee, toffy
    see moresee less
    peanut brittle
    brittle containing peanuts
    type of:
    candy, confect
    a rich sweet made of flavored sugar and often combined with fruit or nuts
  4. adjective
    lacking warmth and generosity of spirit
    “a brittle and calculating woman”
    lacking in sympathy or feeling
Word Family

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