形容词
1. 脆的；易碎的
An object or substance that is brittle is hard but easily broken.
2. 脆弱的；不稳固的；易变的
If you describe a situation, relationship, or someone's mood as brittle, you mean that it is unstable, and may easily change.
3. 尖刻的；冷漠麻木的
Someone who is brittle seems rather sharp and insensitive and says things which are likely to hurt other people's feelings.
4. （声音）尖厉的
A brittle sound is short, loud, and sharp.