1. Brittle: (of a person's voice) unpleasantly hard and sharp and showing signs of instability or nervousness.
2. Gruff: (of a voice) rough and low in pitch.
3. Hoarse: (of a person's voice) sounding rough and harsh, typically as the result of a sore throat or of shouting.
4. Husky: (of a voice or utterance) sounding low - pitched and slightly hoarse.
5. Wobbly: (of a voice) tending to move out of tone or slightly vary in pitch, usually when someone is not confident, frightened, or about to cry.
6. Tremulous: shaking or quivering slightly
7. Thin: faint and high - pitched.
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