headlong
1. [ adverb ] with the head foremost
Synonyms: headfirst
Examples:

"the runner slid headlong into third base"

2. [ adjective ] excessively quick
Synonyms: hasty
Examples:

"made a hasty exit" "a headlong rush to sell"

Related terms: hurried
3. [ adverb ] in a hasty and foolhardy manner
Synonyms: rashly
Examples:

"he fell headlong in love with his cousin"

Related terms: rash rash
4. [ adverb ] at breakneck speed
Synonyms: precipitately
Examples:

"burst headlong through the gate"

Related terms: hasty hasty hasty hasty
5. [ adjective ] with the head foremost
Synonyms: headfirst
Examples:

"a headfirst plunge down the stairs" "a headlong dive into the pool"

Related terms: forward
Similar spelling:   headline
  headland
  headlamp