uncheerful

Not that it was melancholy or even uncheerful, but simply serious.

With his face partially lathered he heard a knock at the door, and sang out a not uncheerful "Come in."

I would defy the most miserable hypochondriac alive to remain uncheerful on a bright sunny day on these glorious uplands.

Nor was he uncheerful in his cold garret and with his empty stomach, for 'Mr Bailey, Grocer,' drew steadily to an end.

But here his uncheerful meditations were broken in on by a voice, imperative in tone, yet perceptibly shaken by laughter.