Synonyms of headachenext
1
: pain in the head
2
: a vexatious or baffling situation or problem
… meetings had become a giant headache.—Franklin Foer
headachy adjective
variants or less commonly headachey
-er/-est
1
: having headache
2
: causing headache or attended by headache

Examples of headache in a Sentence

Noun I'm starting to get a headache. The symptoms include fever and headache. The city's biggest headache is traffic. Managing your finances can be a real headache.
Recent Examples on the Web
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Noun
New research suggests concussions can quietly shut down the brain’s control over testosterone, and the hormonal fallout often goes undiagnosed long after the headaches fade. — Samantha Agate, Miami Herald, 19 Oct. 2026 Which of his many deals of the past gave him the biggest headache? — Georg Szalai, HollywoodReporter, 17 Oct. 2026 The biggest headache for Thune was the Save America Act, a voter ID bill that lacked a strategy to become law in the Senate. — semafor.com, 16 Oct. 2026 In Meta’s case, creepy video-recording incidents and privacy-light tampering have caused severe headaches for the company. — Jibin Joseph, PC Magazine, 16 Oct. 2026 See All Example Sentences for headache

Word History

First Known Use

Noun

before the 12th century, in the meaning defined at sense 1

Adjective

1795, in the meaning defined at sense 1

Time Traveler
The first known use of headache was before the 12th century

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Cite this Entry

“Headache.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/headache. Accessed 20 Oct. 2026.

Kids Definition

1
: pain in the head
2
: an annoying or baffling situation or problem

Medical Definition

: pain in the head

called also cephalalgia

More from Merriam-Webster on headache

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