na-adjective
running short; running low; having few remaining
Describes a remaining amount that is small and dwindling. Often used for time, money, or countable items. The voiced reading のこりずくな is common in natural speech.
会議の時間が残り少なくなってきた。
The remaining time for the meeting is running short.
食料が残り少ないので、
We're running low on food, so we have to go shopping.