recklessly

About 0.64 uses per million words.

Meaning

1. adverb In a rash or reckless manner, without regard for cost or consequence.
2. adverb With contempt for the rights, feelings, or well-being of others.

Similar words

irresponsibly negligently unwisely ruthlessly mercilessly unduly pointlessly uselessly arbitrarily unnecessarily

Often followed by

and to in into or as on with through