child's play Meaning, Definition & Usage

  1. noun any undertaking that is easy to do
    picnic; walkover; duck soup; piece of cake; breeze; cinch; snap; pushover.
    • marketing this product will be no picnic
  2. noun activity by children that is guided more by imagination than by fixed rules
    play.
    • Freud believed in the utility of play to a small child

WordNet