impertinent (adj) - intrusive, disrespectful, or rude; irrelevant or out of place [im-pur-tn-uhnt]
BREAKDOWN: IM- (not) + PER- (thoroughly) + TIN- (hold) + -ENT (being)
impertinence is something presumptuous, insolent, or unseemly
See also: appertain
“Ask an impertinent question and you are on the way to the pertinent answer.” —Jacob Bronowski