Simple Definition of headfirst
: 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
Examples of headfirst in a sentence
She dove into the water headfirst.
She rushed into the relationship headfirst.
First Known Use of headfirst
HEADFIRST Defined for Kids
Definition of headfirst for Students
: with the head in front <He fell headfirst down the stairs.>
Seen and Heard
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