minor
inconsequential, inconsiderable, inferior, insignificant, junior, lesser, light, negligible, nickel-and-dime (U.S. slang) paltry, petty, secondary, slight, small, smaller, subordinate, trifling, trivial, unimportant, younger
Antonyms
appreciable, consequential, considerable, essential, grand, great, heavy, important, major, profound, serious, significant, substantial, superior, vital, weighty