headfirst

adverb

head·​first ˈhed-ˈfərst 

1

: with the head foremost

dove headfirst into the waves

2

: headlong sense 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

Penta sent Page headfirst into the turnbuckle and then hit an arm drag. — Blake Oestriecher, Forbes.com, 24 May 2026

Still, diving headfirst into the city and a competitive industry was a shock. — Ellise Shafer, Variety, 28 May 2026

The engine failed 35 minutes into the flight, and the aircraft plunged headfirst into the jungle floor. — Emily Blackwood, PEOPLE, 1 May 2026

The pitch was high, and the headfirst-sliding Guzman was able to get his left hand onto the plate just ahead of Janicki's tag. — CBS News, 12 June 2026

Word History

First Known Use

1790, in the meaning defined at sense 1

Rhymes for headfirst

• accursed
• amerced
• cloudburst
• coerced
• conversed
• disbursed
• dispersed
• immersed
• outburst
• rehearsed
• reversed
• starburst

Kids Definition

headfirst

adverb

head·​first ˈhed-ˈfərst 

: with the head foremost

headfirst adjective