Synonyms and Antonyms for portentous

Synonyms:

• important
• significant
• prodigious

Antonyms:

• insignificant
• unimportance
• inessential
• unimportant

Synonyms:

• foreboding
• prophetical
• prophetic
• fateful

Antonyms:

• unprophetic
• fortunate
• indecisive
• evitable
• worthless

Synonyms:

• pontifical
• overblown
• pretentious
• grandiloquent
• pompous

Antonyms:

• unpretentious
• immature
• tasteful
• unostentatious
• unrhetorical