ruthful

adjective3

1. •
   Full of ruth or pity; merciful; compassionate.

   • Then he bestowed robes of honour on the nurses wet and dry and said to them, "Be ye ruthful over them and rear them after the goodliest fashion." — 1898
2. •
   Full of sorrow; sorrowful; woeful; rueful.
3. •
   Causing pity; piteous.

   • When last this ruthful month was come, / And in Linlithgow’s holy dome / The King, as wont, was praying; [...] — 1808