Antonyms of adj merciless

1 sense of merciless

Sense 1
merciless (vs. merciful), unmerciful -- (having or showing no mercy; "the merciless enemy"; "a merciless critic"; "gave him a merciless beating")

merciful (vs. merciless) -- (showing or giving mercy; "sought merciful treatment for the captives"; "a merciful god")

Similarity of adj merciless

1 sense of merciless

Sense 1
merciless (vs. merciful), unmerciful -- (having or showing no mercy; "the merciless enemy"; "a merciless critic"; "gave him a merciless beating")
       => cutthroat, fierce, bowelless -- (ruthless in competition; "cutthroat competition"; "bowelless readiness to take advantage")
       => mortal (prenominal) -- (unrelenting and deadly; "mortal enemy")
       => pitiless, remorseless, ruthless, unpitying -- (without mercy or pity; "an act of ruthless ferocity"; "a monster of remorseless cruelty")
       => tigerish -- (resembling a tiger in fierceness and lack of mercy; "a tigerish fury")
          Also See-> bloody#1; hard#2; inclement#2; implacable#1; uncompassionate#1; unkind#1