quivering

/ˈkwɪvərɪŋ/
adjective
  1. Shaking or trembling with small, rapid movements, often due to cold, fear, or excitement.
    • The quivering leaves in the wind signaled an approaching storm.
    • She held out a quivering hand as she reached for the award.
    • His quivering voice betrayed his nervousness during the speech.
Antonyms
noun
  1. The act or state of shaking or trembling slightly.
    • A quivering ran through the crowd as the news spread.
    • The quivering of the bridge made the pedestrians uneasy.
    • He felt a quivering in his legs after the long run.