adjective / adverb
scarce
SKAIRS/skers/
Present in less than the needed amount.
Fresh produce is scarce, with only one apple left among three large trays.

Etymology
Scars described something scanty in amount. The English meaning extends from having little available to rarely encountering something, connecting insufficient quantity with difficulty finding it.
In context
Much education is supported by charitable organizations, but resources are scarce and most of Makoko's children will never set foot in a classroom.
More examples
- Affordable apartments are scarce in this neighborhood.
- Fresh vegetables become scarcer as winter approaches.
- Free time is my scarcest resource these days.
Forms
scarce · scarcer · scarcest
scarcity noun — A shortage of something that is needed.
scarcely adverb — Almost not, or only just.