heartless

Weak is a related term of heartless.

As adjectives the difference between weak and heartless

is that weak is lacking in force (usually strength) or ability while heartless is without a heart; specifically, without feeling, emotion, or concern for others; uncaring.

As adjectives the difference between compassionate and heartless

is that compassionate is having, feeling or showing compassion; sympathetic while heartless is without a heart; specifically, without feeling, emotion, or concern for others; uncaring.

As a verb compassionate

is (archaic) to feel compassion for; to pity, feel sorry for.

As adjectives the difference between careless and heartless

is that careless is (lb) free from care; unworried, without anxiety while heartless is without a heart; specifically, without feeling, emotion, or concern for others; uncaring.

Pining is a related term of heartless.

As a noun pining

is torture.

As an adjective heartless is

without a heart; specifically, without feeling, emotion, or concern for others; uncaring.

Heartless is a related term of steely.

As adjectives the difference between heartless and steely

is that heartless is without a heart; specifically, without feeling, emotion, or concern for others; uncaring while steely is having qualities resembling those of steel, especially hard and resolute.

Heartless is a related term of satanic.

As adjectives the difference between heartless and satanic

is that heartless is without a heart; specifically, without feeling, emotion, or concern for others; uncaring while satanic is satanic.

Sullen is a related term of heartless.

As adjectives the difference between sullen and heartless

is that sullen is having a brooding ill temper; sulky while heartless is without a heart; specifically, without feeling, emotion, or concern for others; uncaring.

As a noun sullen

is (obsolete) one who is solitary, or lives alone; a hermit.

Feeble is a related term of heartless.

As adjectives the difference between feeble and heartless

is that feeble is deficient in physical strength; weak; infirm; debilitated while heartless is without a heart; specifically, without feeling, emotion, or concern for others; uncaring.

As a verb feeble

is (obsolete) to make feeble; to enfeeble.

As adjectives the difference between tactless and heartless

is that tactless is having no tact; unaware or intentionally inconsiderate of someone else's feelings while heartless is without a heart; specifically, without feeling, emotion, or concern for others; uncaring.

Weary is a related term of heartless.

As adjectives the difference between weary and heartless

is that weary is having the strength exhausted by toil or exertion; tired; fatigued while heartless is without a heart; specifically, without feeling, emotion, or concern for others; uncaring.

As a verb weary

is to make or to become weary.