pesky

adjective

pes·​ky ˈpe-skē 

peskier; peskiest

: troublesome, vexatious

pesky issues

Synonyms of pesky

• annoying
• frustrating
• irritating

Examples of pesky in a Sentence

I've been trying to get rid of this pesky cold for weeks.

the pesky problem of what to do with all the leftovers

Recent Examples on the Web

The critical brain is still zonked, and along with it, its pesky sidekicks, self-doubt and anxiety. — Literary Hub, 13 July 2026

For many people, cleaning their shower and tub is less about being a pesky chore and more about the overall physical strain. — Caroline Lubinsky, Martha Stewart, 11 July 2026

Not so lucky for me, my fair complexion and genetics make up the perfect recipe for pesky under-eye bags. — Kyra Surgent, InStyle, 7 July 2026

The United States has comparatively fewer pesky pathogens to worry about 250 years later (measles resurgence, notwithstanding). — Helen Branswell, STAT, 6 July 2026

Word History

Etymology

probably irregular from pest + -y entry 1

First Known Use

1775, in the meaning defined above

Kids Definition

pesky

adjective

pes·​ky ˈpes-kē 

peskier; peskiest

: troublesome sense 2

peskily

-kə-lē

adverb

peskiness

-kē-nəs

noun