All momentous antonyms

adj momentous

• inconsequential — of little or no importance; insignificant; trivial.
• insignificant — unimportant, trifling, or petty: Omit the insignificant details.
• unimportant — of much or great significance or consequence: an important event in world history.
• unremarkable — notably or conspicuously unusual; extraordinary: a remarkable change.
• trivial — of very little importance or value; insignificant: Don't bother me with trivial matters.
• meaningless — without meaning, significance, purpose, or value; purposeless; insignificant: a meaningless reply; a meaningless existence.
• uneventful — not eventful; lacking in important or striking occurrences: an uneventful day at the office.
• trifling — of very little importance; trivial; insignificant: a trifling matter.
• ordinary — of no special quality or interest; commonplace; unexceptional: One novel is brilliant, the other is decidedly ordinary; an ordinary person.
• unnoteworthy — worthy of notice or attention; notable; remarkable: a noteworthy addition to our collection of rare books.
• unsubstantial — not substantial; having no foundation in fact; fanciful; insubstantial: an unsubstantial argument; unsubstantial hopes.
• immaterial — of no essential consequence; unimportant.