Definify.com

Webster 1913 Edition

Adj.

Not parted or divided, as the hair.

[Obs.]

Spenser.

Not spilt, or made to flow, as blood or tears.

Milton.

Adj.

Not shed; not split; as blood unshed.

unshed ‎(not comparable)

That has not been shed.
- 1922, James Joyce, Ulysses Chapter 13
  His eyes misty with unshed tears Master Tommy came at her call for their big sister's word was law with the twins.