1. superlative form of pesty; most annoying, troublesome, or bothersome
Usage: informal; superlative of pesty

Examples

• That mosquito is the pestiest insect in the entire backyard.
• Of all her siblings, her youngest brother is the pestiest.
• The pestiest part of the project was dealing with the technical glitches.
• He found the pestiest aspect of the job to be the endless paperwork.
• That's the pestiest question you could have asked right now.