calmness

As a noun calmness is

(uncountable) the state of being calm; tranquillity; silence.

As a noun calmness is

(uncountable) the state of being calm; tranquillity; silence.

As nouns the difference between compassion and calmness

is that compassion is deep awareness of the suffering of another, coupled with the wish to relieve it while calmness is (uncountable) the state of being calm; tranquillity; silence.

As a verb compassion

is (obsolete) to pity.

Calmness is a related term of relaxation.

As nouns the difference between calmness and relaxation

is that calmness is (uncountable) the state of being calm; tranquillity; silence while relaxation is the act of relaxing or the state of being relaxed; the opposite of stress or tension; the aim of recreation and leisure activities.

As nouns the difference between calmness and peacefulness

is that calmness is the state of being calm; tranquillity; silence while peacefulness is the state of being peaceful.

As nouns the difference between soundlessness and calmness

is that soundlessness is the state or condition of being soundless while calmness is the state of being calm; tranquillity; silence.

Hush is a related term of calmness.

As nouns the difference between hush and calmness

is that hush is a silence, especially after some noise while calmness is (uncountable) the state of being calm; tranquillity; silence.

As a verb hush

is to become quiet.

Muteness is a related term of calmness.

As nouns the difference between muteness and calmness

is that muteness is the characteristic of being mute while calmness is (uncountable) the state of being calm; tranquillity; silence.

As nouns the difference between quietness and calmness

is that quietness is absence of sound; silence or hush while calmness is the state of being calm; tranquillity; silence.

Calmness is a related term of rest.

As nouns the difference between calmness and rest

is that calmness is (uncountable) the state of being calm; tranquillity; silence while rest is prison.