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1. A person who lacks confidence, is irresolute and wishy-washy
   - chicken, crybaby

1. 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: WIMPs, wimps

See also: wimpy

Type of: doormat, elementary particle, fundamental particle, weakling, wuss, wussy

Part of: dark matter

Encyclopedia: WIMP