All cardinal antonyms

adj cardinal

• minor — lesser, as in size, extent, or importance, or being or noting the lesser of two: a minor share.
• peripheral — pertaining to, situated in, or constituting the periphery: peripheral resistance on the outskirts of the battle area.
• last — occurring, coming, or being after the usual or proper time: late frosts; a late spring.
• subordinate — placed in or belonging to a lower order or rank.
• unimportant — of much or great significance or consequence: an important event in world history.
• least — small in size; not big; not large; tiny: a little desk in the corner of the room.
• inessential — not essential; not necessary; nonessential.
• unnecessary — not necessary or essential; needless; unessential.
• additional — Additional things are extra things apart from the ones already present.
• auxiliary — An auxiliary is a person who is employed to assist other people in their work. Auxiliaries are often medical workers or members of the armed forces.
• trivial — of very little importance or value; insignificant: Don't bother me with trivial matters.
• nonessential — not essential; not necessary: Nonessential use of gasoline was forbidden during the war.
• insignificant — unimportant, trifling, or petty: Omit the insignificant details.
• negligible — so small, trifling, or unimportant that it may safely be neglected or disregarded: The extra expenses were negligible.
• outside — the outer side, surface, or part; exterior: The outside of the house needs painting.
• secondary — next after the first in order, place, time, etc.
• inferior — lower in station, rank, degree, or grade (often followed by to): a rank inferior to colonel.