term:

Reckless

reckless adj

: characterized by the creation of a substantial and unjustifiable risk to the lives, safety, or rights of others and by a conscious and sometimes wanton and willful disregard for or indifference to that risk that is a gross deviation from the standard of care a reasonable person would exercise in like circumstances [a state of mind may be inferred from conduct] see also involuntary manslaughter at manslaughter reckless homicide at homicide, recklessness compare careless
reck·less·ly adv

Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.