Dictionary definition · headlong
adjective
- excessively quick"made a hasty exit"
- with the head foremost"a headfirst plunge down the stairs"
adverb
- with the head before the body"the runner slid headlong into third base"
- at breakneck speed"burst headlong through the gate"
- in a hasty and foolhardy manner"he fell headlong in love with his cousin"
Similar words
Source: Open English WordNet (CC BY 4.0).