upon the instant
Immediately, right away.
Light flashed up in the room upon the instant, and the curtains of his bed were drawn.
VERBS
be
ADV
almost
The delivery arrived almost instant after we placed the online order yesterday.
ADJ
brief, fleeting
There was a fleeting instant when he almost told her the truth about what happened.
one, single
She didn't hesitate for one instant before deciding to accept the job offer.
VERB + INSTANT
pause for
She hesitated and paused for an instant when she saw the accident on the street.
PREP
for an ~
When the lights went out, everyone froze for an instant before someone found the torch.
in an ~
The lights went out and the whole building was plunged into darkness in an instant.
~ after/before
The lights went out in the instant after the storm hit the power lines.
ADJ
(any) given, (any) one
At any given instant, the traffic light can change from red to green.
very
She was about to leave when, at that very instant, her phone rang with important news.
PREP
at ~
She felt a sharp pain in her shoulder at that instant and knew something was wrong.