English

Noun

megachallenge ‎(plural megachallenges)

1. An exceptionally difficult challenge.
   • 2009, Kathleen Kryza, ‎Alicia Duncan, ‎S. Joy Stephens, Differentiation for Real Classrooms: Making It Simple, Making It Work

     They choose from a menu of regular challenges, superchallenges, or megachallenges.