after a while

[after a while] {informal} or [in a while] {adv. phr.} Later, at some time in the future; after a time that is not short and not long.

"Dad, will you help me make this model plane?" "After a while, Jimmy, when I finish reading the newspaper."

The boys gathered some wood, and in a while, a hot fire was burning.

Syn.: BY AND BY. Contrast: RIGHT AWAY.