For a short time.

Roget 111: temporarily etc. adj.; pro tempore [Lat.]; for the moment, for a time; awhile, en passant [Fr.], in transitu [Lat.]; in a short time; soon etc. (early) 132; briefly etc. adj.; at short notice; on the point of, on the eve of; in articulo; between cup and lip.    ... show more

In a concise manner; in a few words:
— She replied briefly.
— Briefly, we have a problem.

synonyms: concisely, in brief, in short, shortly.

Roget 132: early, soon, anon, betimes, rath^†; eft, eftsoons; ere long, before long, shortly; beforehand; prematurely etc. adj.; precipitately etc. (hastily) 684; too soon; before its time, before one's time; in anticipation; unexpectedly etc. 508.    suddenly etc. (instantaneously) 113; before one can say 'Jack Robinson'," at short notice, extempore; on the spur of the moment, on the spur of the occasion [Bacon]; at once; on the spot, on the instant; at sight; offhand, out of hand; a' vue d'oeil [Fr.]; straight, straightway, straightforth^†; forthwith, incontinently, summarily, immediately, briefly, shortly, quickly, speedily, apace, before the ink is dry, almost immediately, presently at the first opportunity, in no long time, by and by, in a while, directly.    ... show more

Roget 572: concisely etc. adj.; briefly, summarily; in brief, in short, in a word, in a few words; for shortness sake; to come to the point, to make a long story short, to cut the matter short, to be brief; it comes to this, the long and the short of it is.    ... show more