[syn: headlong, headfirst]
The Collaborative International Dictionary of English v.0.48:
Headfirst \Head`first"\ (h[e^]d"f[~e]rst`), Headforemost
\Head`fore"most`\ (h[e^]d`f[=o]r"m[=o]st`), adv.
With the head foremost; -- of motion.
[1913 Webster]
WordNet (r) 3.0 (2006):
headfirst
adv 1: with the head foremost; "the runner slid headlong into
third base" [syn: headlong, headfirst]
adj 1: with the head foremost; "a headfirst plunge down the
stairs"; "a headlong dive into the pool" [syn:
headfirst, headlong]