1. Shaking convulsively or violently

1. Shake, as from cold
   - shiver 
2. Tremble convulsively, as from fear or excitement
   - shiver, throb, thrill

See also: unsteady

Type of: move involuntarily, move reflexively, tremble

Encyclopedia: Shudder

• under a cloud
• under arms
• under attack
• under fire
• under it
• under that
• under the circumstances
• under the weather
• under wraps
• under-represent
• under-the-counter
• under-the-table
• underachieve
• underachievement
• underachiever
• underact
• underactive
• underage
• underarm
• underbelly
• underbid
• underbodice
• underbody
• underboss
• underbred