SPAREST

Scant; not abundant or plentiful.

Example: "A spare diet"

Sparing; frugal; parsimonious; not spending much money.

Being more than what is necessary, or what must be used or reserved; not wanted, or not used; superfluous.

Example: "I have no spare time."

Held in reserve, to be used in an emergency.

Example: "A spare anchor; a spare bed or room"

Lean; lacking flesh; meager; thin; gaunt.

Very angry; frustrated or distraught.

Example: "The poor girl is going spare, stuck in the house all day with the kids like that."

Slow.