adjective, -tler, -tlest, noun, verb, -tled, -tling.| 1. | having hardness and rigidity but little tensile strength; breaking readily with a comparatively smooth fracture, as glass. |
| 2. | easily damaged or destroyed; fragile; frail: a brittle marriage. |
| 3. | lacking warmth, sensitivity, or compassion; aloof; self-centered: a self-possessed, cool, and rather brittle person. |
| 4. | having a sharp, tense quality: a brittle tone of voice. |
| 5. | unstable or impermanent; evanescent. |
| 6. | a confection of melted sugar, usually with nuts, brittle when cooled: peanut brittle. |
| 7. | to be or become brittle; crumble. |

brit·tle (brĭt'l) adj. brit·tler, brit·tlest
[Middle English britel, probably from Old English *brytel, from bryttian, to shatter.] brit'tle·ly (brĭt'l-ē) adv., brit'tle·ness n. |
| brittle (brĭt'l) Pronunciation Key
Having a tendency to break when subject to high stress. Brittle materials have undergone very little strain when they reach their elastic limit, and tend to break at that limit. Compare ductile. |