Failure to use care which a reasonable and prudent person would use under similar circumstances.
Source: U.S. Courts
The failure to exercise the care, prudence, or attention to duties which the interests of the government require to be exercised by a prudent and reasonable person under the circumstances.
Source: Judge Advocate General
When someone fails to be as careful as the law requires to protect the rights and property of others.
Source: California Courts.
Failure to act in a manner that is reasonably prudent; failure to exercise the appropriate degree of care under given circumstances.
Source: Missouri Department of Insurance