Both Uses

negligent
in
King Lear
(Auto-generated)

Put on what weary negligence you please,
You and your fellow servants. I'll have it come to question.
Scene 1.3 *

negligence = insufficient care or attention
—servants, who seem no less, Which are to France the spies and speculations Intelligent of our state; what hath been seen, Either in snuffs and packings of the dukes; Or the hard rein which both of them have borne Against the old kind king; or something deeper, Whereof, perchance, these are but furnishings;—But, true it is, from France there comes a power Into this scatter'd kingdom; who already, Wise in our negligence, have secret feet In some of our best ports, and are at point To show their open banner.†
Scene 3.1

Definitions:

(1) (negligent)
insufficient care or attention (not being careful enough or not trying hard enough to fulfill a responsibility)
(2) (meaning too rare to warrant focus)