whippersnapper /(h)wipˈər-snap-ər/ (old informal)

1. A cheeky young lad
2. Any lowly person who behaves impudently

• impeccably
• impeccancies
• impeccancy
• impeccant
• impecuniosities
• impecuniosity
• impecunious
• impecuniously
• impecuniousness
• impecuniousnesses
• imped
• impedance
• impedances
• impede
• impeded
• impedes
• impediment
• impedimenta
• impedimental
• impediments
• impeding
• impedingly
• impeditive
• impel
• impelled