English adjective: headfirst | |||
| 1. | headfirst with the head foremost | ||
| Samples | A headfirst plunge down the stairs. A headlong dive into the pool. | ||
| Synonyms | headlong | ||
| Similar | forward | ||
| Antonyms | backward | ||
English adverb: headfirst | |||
| 1. | headfirst with the head foremost | ||
| Samples | The runner slid headlong into third base. | ||
| Synonyms | headlong | ||