merciless

As adjectives the difference between merciless and unforgiving

is that merciless is showing no mercy; cruel and pitiless while unforgiving is unwilling or unable to forgive or show mercy.

As adjectives the difference between merciless and injust

is that merciless is showing no mercy; cruel and pitiless while injust is (archaic) unjust, unfair.

Merciless is a related term of bad.

As an adjective merciless

is showing no mercy; cruel and pitiless.

As a verb bad is

to simulate.

As a verb accomplish

is to finish successfully.

As an adjective merciless is

showing no mercy; cruel and pitiless.

Merciless is a related term of dark.

As adjectives the difference between merciless and dark

is that merciless is showing no mercy; cruel and pitiless while dark is having an absolute or (more often) relative lack of light.

As a noun dark is

a complete or (more often) partial absence of light.

Unlettered is a related term of merciless.

As adjectives the difference between unlettered and merciless

is that unlettered is not instructed in letters; not well educated; unable to read while merciless is showing no mercy; cruel and pitiless.

As adjectives the difference between sparing and merciless

is that sparing is prudent and restrained in the use of resources; careful, economical or frugal while merciless is showing no mercy; cruel and pitiless.

As a verb sparing

is .

As adjectives the difference between pitiful and merciless

is that pitiful is feeling pity; merciful while merciless is showing no mercy; cruel and pitiless.

As an adjective merciless

is showing no mercy; cruel and pitiless.

As a noun pity is

(uncountable) a feeling of sympathy at the misfortune or suffering of someone or something.

As a verb pity is

to feel pity for (someone or something).

As an interjection pity is

short form of what a pity.

As adjectives the difference between tragic and merciless

is that tragic is causing great sadness or suffering while merciless is showing no mercy; cruel and pitiless.

As a noun tragic

is (obsolete) a writer of tragedy.