Adjective merciful has 3 senses
- merciful - showing or giving mercy; "sought merciful treatment for the captives"; "a merciful god"
Antonyms: merciless, unmerciful, cutthroat, fierce, bowelless, mortal, pitiless, remorseless, ruthless, unpitying, tigerish
- kind, merciful - characterized by mercy, and compassion; "compassionate toward disadvantaged people"; "kind to animals"; "a humane judge"
Antonym: inhumane (indirect, via humane)
- merciful - used conventionally of royalty and high nobility; "our merciful king"
Antonym: ungracious (indirect, via gracious)
,