Headlong and Slapdash

Headlong adjective - Acting or done with excessive or careless speed.

Slapdash and headlong are semantically related in careful topic. In some cases you can use "Slapdash" instead the word "Headlong" as an adjective or an adverb.

Slapdash adjective - Lacking a definite plan, purpose, or pattern.

Headlong and slapdash are semantically related in careful topic. You can use "Headlong" instead the word "Slapdash" as an adjective or an adverb.