headfirst

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adverb head·first \ˈhed-ˈfərst\

: with the head leading

: without taking time to think about your actions

Full Definition of HEADFIRST

1

:  with the head foremost <dove headfirst into the waves>

2

:  headlong 2

— headfirst adjective

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Examples of HEADFIRST

1. She dove into the water headfirst.
2. She rushed into the relationship headfirst.

First Known Use of HEADFIRST

circa 1828

Rhymes with HEADFIRST

accursed, airburst, at first, athirst, cloudburst, downburst, emersed, face-first, feetfirst, groundburst, outburst, starburst, sunburst