headfirst

adverb

head·​first ˈhed-ˈfərst How to pronounce headfirst (audio)
Synonyms of headfirstnext
1
: with the head foremost
dove headfirst into the waves
2
headfirst adjective

Examples of headfirst in a Sentence

She dove into the water headfirst. She rushed into the relationship headfirst.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Through their unlikely friendship, the budding director got to dive headfirst into — and fall in love with — the then-dying underground scene of Greek B-movies. Rafa Sales Ross, Variety, 9 Mar. 2026 We've already been thrown headfirst into election season with a major political shakeup in the race for secretary of state. Marissa Meador, IndyStar, 6 Mar. 2026 Fire Chief Steve Gollan added that people should wear life jackets on boats, never swim alone, abstain from drinking before and during water activities, and avoid diving headfirst from charter boats due to the presence of shallow waters. Megan Vaz, Sun Sentinel, 20 Feb. 2026 Florian is a former ski racer who grew up skiing on Mount Southington and skied in college before discovering skeleton, in which racers pilot a sled down an icy chute headfirst. Lori Riley, Hartford Courant, 12 Feb. 2026 See All Example Sentences for headfirst

Word History

First Known Use

1790, in the meaning defined at sense 1

Time Traveler
The first known use of headfirst was in 1790

Browse Nearby Words

Cite this Entry

“Headfirst.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/headfirst. Accessed 27 Mar. 2026.

Kids Definition

headfirst

adverb
head·​first ˈhed-ˈfərst How to pronounce headfirst (audio)
: with the head foremost
headfirst adjective

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