shenanigan /shi-nanˈi-gən/ (informal; usu in pl)

1. Trickery, underhand dealings
2. Mischief, antics

• impastes
• impasting
• impasto
• impasto'd
• impastoed
• impastos
• impatience
• impatiences
• impatiens
• impatient
• impatiently
• impave
• impaved
• impaves
• impavid
• impavidly
• impaving
• impawn
• impawned
• impawning
• impawns
• impeach
• impeachable
• impeached
• impeacher