The word "pesty" is used to describe someone or something that is irritating or annoying. However, there are many other words that can be used interchangeably with "pesty" to convey a similar meaning. Some synonyms for "pesty" include pestiferous, bothersome, annoying, vexatious, troublesome, pesky, irksome, or nagging. Each of these words connotes a nuisance that is persistent and unwelcome. Whether used to describe a person, an animal, or an inanimate object, these synonyms for "pesty" can add variety and nuance to your writing, helping you to convey the irritation and frustration that comes with dealing with an irritating presence.