1. Characterized by a lightly pert and exuberant quality
   - irreverent, pert, saucy 
2. Not pertinent to the matter under consideration
   "mentioned several impertinent facts before finally coming to the point"
   - extraneous, immaterial, orthogonal 
3. Improperly forward or bold
   "impertinent of a child to lecture a grownup"
   - fresh, impudent, overbold, smart, saucy, sassy [N. Amer], wise, lippy

See also: beside the point, forward, impertinence, irrelevant, spirited

• conferee
• conference
• conference call
• conference center
• conference centre
• conference house
• conference room
• conference table
• conferment
• conferral
• conferrer
• conferva
• confervoid algae
• confess
• confessedly
• confession
• confession of judgement
• confession of judgment
• confessional
• confessor
• confetti
• confidant
• confidante
• confide
• confidence