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Definition of headfirst

headfirst

/ˌhɛdˈfɜːrst/
head · first
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headfirst Lexical Profile

headfirst Game Scores & Validity

• adverb

1

With the head leading or going before the rest of the body.

Example

"The base runner slid headfirst into third base just ahead of the tag."

2

In a rash, impulsive, or hasty manner, without forethought or hesitation.

Example

"She tends to rush headfirst into new projects without reading the instructions first."

Synonyms
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Antonyms
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• adjective

1

Executed or occurring with the head leading before the rest of the body.

Example

"The swimmer made a clean headfirst dive into the deep end of the pool."

2

Undertaken rashly, impulsively, or without prior caution.

Example

"Their headfirst plunge into the new business venture surprised everyone on the board."

Synonyms
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Antonyms
View all antonyms for headfirst

• Rhymes for headfirst

• Nearby Words

headcount
headdress
header
headfirst
headgear
headguard
headhunt

Cite this Entry

Wordmom. (2026). Definition of Headfirst. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/headfirst
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