That reads in a cursory or superficial manner (usually in running reader). Also: (esp. of the action of reading) †done in a cursory or superficial…

Off-hand, superficial.

Of a person: unsophisticated, unrefined; not particular, prepared to take things as they come; working in a rough but prompt and effective manner.

Scottish. Esp. of a person or a person's behaviour or appearance: characterized by haste or carelessness; slapdash; slovenly, messy. Cf. hash, n.1 3.

(un-, prefix1 affix 4.)

Of persons: Given to acting in this way.