All important antonyms

adj important

• miniature — a representation or image of something on a small or reduced scale.
• insignificant — unimportant, trifling, or petty: Omit the insignificant details.
• unimportant — of much or great significance or consequence: an important event in world history.
• inessential — not essential; not necessary; nonessential.
• unnecessary — not necessary or essential; needless; unessential.
• useless — of no use; not serving the purpose or any purpose; unavailing or futile: It is useless to reason with him.
• optional — left to one's choice; not required or mandatory: Formal dress is optional.
• voluntary — done, made, brought about, undertaken, etc., of one's own accord or by free choice: a voluntary contribution.
• tiny — very small; minute; wee.
• trivial — of very little importance or value; insignificant: Don't bother me with trivial matters.
• uncritical — not inclined or able to judge, especially by the application of comparative standards: an uncritical reader.
• meaningless — without meaning, significance, purpose, or value; purposeless; insignificant: a meaningless reply; a meaningless existence.
• minor — lesser, as in size, extent, or importance, or being or noting the lesser of two: a minor share.
• inappreciable — imperceptible; insignificant: an inappreciable difference.
• nonessential — not essential; not necessary: Nonessential use of gasoline was forbidden during the war.
• powerless — unable to produce an effect: a disease against which modern medicine is virtually powerless.
• unknown — not known; not within the range of one's knowledge, experience, or understanding; strange; unfamiliar.
• worthless — without worth; of no use, importance, or value; good-for-nothing: a worthless person; a worthless contract.
• little — small in size; not big; not large; tiny: a little desk in the corner of the room.
• short — having little length; not long.
• small — of limited size; of comparatively restricted dimensions; not big; little: a small box.
• weak — not strong; liable to yield, break, or collapse under pressure or strain; fragile; frail: a weak fortress; a weak spot in armor.
• narrow — of little breadth or width; not broad or wide; not as wide as usual or expected: a narrow path.
• dull — not sharp; blunt: a dull knife.
• secondary — next after the first in order, place, time, etc.
• unsubstantial — not substantial; having no foundation in fact; fanciful; insubstantial: an unsubstantial argument; unsubstantial hopes.
• usual — habitual or customary: her usual skill.
• impotent — not potent; lacking power or ability.
• incapable — not capable.
• ineffective — not effective; not producing results; ineffectual: ineffective efforts; ineffective remedies.
• normal — conforming to the standard or the common type; usual; not abnormal; regular; natural.
• ordinary — of no special quality or interest; commonplace; unexceptional: One novel is brilliant, the other is decidedly ordinary; an ordinary person.
• common — If something is common, it is found in large numbers or it happens often.