rigorous

As adjectives the difference between rigorous and extensive

is that rigorous is manifesting, exercising, or favoring rigour; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration while extensive is in the nature of an extent, wide, widespread.

Sour is a related term of rigorous.

As adjectives the difference between sour and rigorous

is that sour is having an acidic, sharp or tangy taste while rigorous is manifesting, exercising, or favoring rigour; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration.

As a noun sour

is the sensation of a sour taste.

As a verb sour

is (label) to make sour.

Rigorous is a synonym of unyielding.

As adjectives the difference between rigorous and unyielding

is that rigorous is manifesting, exercising, or favoring rigour; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration while unyielding is not giving in; not bending; stubborn.

As an adjective rigorous

is manifesting, exercising, or favoring rigour; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration.

As a pronoun nothing is

not any thing; no thing.

As a noun nothing is

something trifling, or of no consequence or importance.

As an adverb nothing is

(archaic) not at all; in no way.

As adjectives the difference between unpliant and rigorous

is that unpliant is not pliant while rigorous is manifesting, exercising, or favoring rigour; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration.

Pertinacious is a related term of rigorous.

As adjectives the difference between pertinacious and rigorous

is that pertinacious is holding tenaciously to an opinion or purpose while rigorous is manifesting, exercising, or favoring rigour; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration.

Rigorous is a related term of cruel.

As adjectives the difference between rigorous and cruel

is that rigorous is manifesting, exercising, or favoring rigour; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration 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 grave and rigorous

is that grave is influential, important; authoritative while rigorous is manifesting, exercising, or favoring rigour; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration.

As a noun grave

is an excavation in the earth as a place of burial; also, any place of interment; a tomb; a sepulcher.

As a verb grave

is to dig.

As adjectives the difference between specific and rigorous

is that specific is explicit or definite while rigorous is manifesting, exercising, or favoring rigour; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration.

As a noun specific

is a distinguishing attribute or quality.

As adjectives the difference between rough and rigorous

is that rough is having a texture that has much friction. Not smooth; uneven while rigorous is manifesting, exercising, or favoring rigour; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration.

As a noun rough

is the unmowed part of a golf course.

As a verb rough

is to create in an approximate form.

As an adverb rough

is in a rough manner; rudely; roughly.