ominous

As adjectives the difference between premonitory and ominous

is that premonitory is serving as a warning while ominous is of or pertaining to an omen or to omens; being or exhibiting an omen; significant.

As an adjective ominous is

of or pertaining to an omen or to omens; being or exhibiting an omen; significant.

As adjectives the difference between deleterious and ominous

is that deleterious is harmful often in a subtle or unexpected way (as for example deleterious effects, deleterious to health) while ominous is of or pertaining to an omen or to omens; being or exhibiting an omen; significant.

Angry is a related term of ominous.

As adjectives the difference between angry and ominous

is that angry is displaying or feeling anger while ominous is of or pertaining to an omen or to omens; being or exhibiting an omen; significant.

Ominous is a related term of black.

As an adjective ominous

is of or pertaining to an omen or to omens; being or exhibiting an omen; significant.

As a proper noun black is

.

As an adjective ominous

is of or pertaining to an omen or to omens; being or exhibiting an omen; significant.

As a noun harbinger is

a person or thing that foreshadows or foretells the coming of someone or something.

As a verb harbinger is

to announce; to be a harbinger of.

As adjectives the difference between dark and ominous

is that dark is having an absolute or (more often) relative lack of light while ominous is of or pertaining to an omen or to omens; being or exhibiting an omen; significant.

As a noun dark

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

Intimidating is a related term of ominous.

As adjectives the difference between intimidating and ominous

is that intimidating is threatening while ominous is of or pertaining to an omen or to omens; being or exhibiting an omen; significant.

As a verb intimidating

is .

Pernicious is a related term of ominous.

As adjectives the difference between pernicious and ominous

is that pernicious is causing much harm in a subtle way while ominous is of or pertaining to an omen or to omens; being or exhibiting an omen; significant.

Ominous is a related term of hateful.

As adjectives the difference between ominous and hateful

is that ominous is of or pertaining to an omen or to omens; being or exhibiting an omen; significant while hateful is evoking a feeling of hatred.