WordWeb Online

1. A person who lacks confidence, is irresolute and wishy-washy
   - chicken, crybaby, candy-ass [N. Amer]

1. Not do or complete something due to lack of courage
   - wimp out

1. (physics) a hypothetical subatomic particle of large mass that interacts weakly with ordinary matter through gravitation; postulated as a constituent of the dark matter of the universe
   - weakly interacting massive particle

Derived forms: wimped, WIMPs, wimping, wimps

Type of: doormat, elementary particle, fundamental particle, weakling, weed [UK], wet [UK], wuss, wussy

Part of: dark matter

Encyclopedia: Wimp