In a momentous manner.

Outstanding in importance, of great consequence.

The quality of being momentous.

(archaic) From moment to moment; continually. / (now literary) Momentarily; for a moment.

Relating to or characteristic of a moment / Synonym of momentous

As much as can be experienced in a moment.

(obsolete) For a moment; briefly.

(obsolete) Lasting only for a moment; brief. / (obsolete) important; momentous / (obsolete, engineering) Of or relating to moment or momentum.

At this time

plural of Moment