(un-, prefix1 affix 5).

Without concern, care, or resistance; apathetically, indifferently, passively. Obsolete.

In a dispassionate or calm manner.

In an impassive manner.

Without emotion; with indifference, stolidly.

In a passionless manner; having or expressing no passion, enthusiasm, or excitement.

In an insensate manner: (a) unconsciously; (b) unfeelingly; (c) senselessly, foolishly.

In an impassible manner.

In a stony manner. Chiefly figurative: cf. stony, adj. 5a.