unmerciful

As adjectives the difference between unmerciful and unpitying

is that unmerciful is not showing mercy while unpitying is not feeling or showing pity.

Evil is a related term of unmerciful.

As adjectives the difference between evil and unmerciful

is that evil is intending to harm; malevolent while unmerciful is not showing mercy.

As a noun evil

is moral badness; wickedness; malevolence; the forces or behaviors that are the opposite or enemy of good.

Unmerciful is a related term of uncompassionate.

As adjectives the difference between unmerciful and uncompassionate

is that unmerciful is not showing mercy while uncompassionate is not compassionate.

Uncaring is a related term of unmerciful.

As adjectives the difference between uncaring and unmerciful

is that uncaring is characterized by a lack of care; not caring while unmerciful is not showing mercy.

Fiendish is a related term of unmerciful.

As adjectives the difference between fiendish and unmerciful

is that fiendish is sinister; evil; conniving; in the manner of a fiend while unmerciful is not showing mercy.

Unmerciful is a related term of pitiless.

As adjectives the difference between unmerciful and pitiless

is that unmerciful is not showing mercy while pitiless is having, or showing, no pity; merciless.

Unmerciful is a related term of hardened.

As adjectives the difference between unmerciful and hardened

is that unmerciful is not showing mercy while hardened is unfeeling or lacking emotion due to experience; callous.

As a verb hardened is

(harden).

Unmerciful is a related term of callous.

As adjectives the difference between unmerciful and callous

is that unmerciful is not showing mercy while callous is emotionally hardened; unfeeling and indifferent to the suffering/feelings of others.

Unmerciful is a related term of fell.

As an adjective unmerciful

is not showing mercy.

As a noun fell is

fur, pelt (hairy skin of an animal).

Coldblooded is a synonym of unmerciful.

As adjectives the difference between coldblooded and unmerciful

is that coldblooded is while unmerciful is not showing mercy.