cruel

Cruel is a synonym of fierce.

As adjectives the difference between fierce and cruel

is that fierce is extremely violent, severe, ferocious or savage while cruel is not nice; mean; heartless.

As a verb cruel is

to spoil or ruin (one's chance of success.

As adjectives the difference between bitter and cruel

is that bitter is having an acrid taste (usually from a basic substance) while cruel is not nice; mean; heartless.

As verbs the difference between bitter and cruel

is that bitter is to make bitter while cruel is to spoil or ruin (one's chance of success.

As a noun bitter

is a liquid or powder, made from bitter herbs, used in mixed drinks or as a tonic.

As a proper noun beast

is (biblical) a figure in the book of revelation (apocalypse), often identified with satan or the antichrist.

As an adjective cruel is

not nice; mean; heartless.

As a verb cruel is

to spoil or ruin (one's chance of success).

As adjectives the difference between cruel and uncruel

is that cruel is not nice; mean; heartless while uncruel is not cruel.

As a verb cruel

is to spoil or ruin (one's chance of success).

As adjectives the difference between cruel and vengeable

is that cruel is not nice; mean; heartless while vengeable is (obsolete) vengeful.

As a verb cruel

is to spoil or ruin (one's chance of success).

As adjectives the difference between cruel and asperous

is that cruel is not nice; mean; heartless while asperous is rough, rugged, uneven.

As a verb cruel

is to spoil or ruin (one's chance of success).