Meanings
- not comparableWith the head in front; headlong.
Synonyms: headforemost, headlong · Antonyms: feet first
- not comparableRashly; precipitately; without deliberation; hastily.
Sheffield was not going to stop being Sheffield just because he had dived headfirst into the lusts of the flesh.
2016, Kerry Greenwood, Murder and Mendelssohn, Sydney: Allen and Unwin, page 2451 more example
Over the past two years, Silicon Valley’s leaders and investors — many of whom had once forsworn involvement in weapons and war — have plunged headfirst into the military industrial complex.
2025 August 4, Sheera Frenkel, “The Militarization of Silicon Valley”, in The New York Times, New York, N.Y.: The New York Times Company, →ISSN, →OCLC, archived from the original on 05 Aug 2025
- not comparableWith the head in front; headlong.
Synonyms & antonyms
More synonyms by meaning
adverbwith the head before the body
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
Cite this entry
headfirst. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/headfirst
“headfirst.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/headfirst. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “headfirst,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/headfirst.
Source: headfirst on Wiktionary, CC BY-SA 4.0.