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headfirst

American  
[hed-furst] / ˈhɛdˈfɜrst /

adverb

  1. with the head heads in front or bent forward; headforemost.

    He dived headfirst into the sea.

  2. rashly; precipitately.


headfirst British  
/ ˈhɛdˈfɜːst /

adjective

  1. with the head foremost; headlong

    he fell headfirst

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adverb

  1. rashly or carelessly

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of headfirst

First recorded in 1820–30; head + first

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Twila charges in headfirst without concern for the consequences, whether it’s setting a bar on fire to escape the notice of KGB or brazenly approaching Russian sources.

From Los Angeles Times

This house dives headfirst into the counterculture of Venice.

From Los Angeles Times

We race each other to the car and dive inside headfirst, with Autumn beating me by a split second.

From Literature

Equihua’s trust in herself is what led her from a scholarship at Parsons School of Design to an in-house designer for luxury womenswear brands to leaping headfirst into her own label.

From Los Angeles Times

I just know that Bronstein demands you pay attention to her, and with Byrne diving headfirst into the character’s harrowing panic, you will find you have no other choice.

From Los Angeles Times