| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | valuable, substantial |
| Synonyms: | big, big-league, chief, considerable, conspicuous, critical, crucial, decisive, determining, earnest, essential, esteemed, exceptional, exigent, extensive, far-reaching, foremost, front-page, grave, great, heavy, imperative, importunate, influential, large, marked, material, mattering much, meaningful, momentous, necessary, of moment, of note, of substance, paramount, ponderous, pressing, primary, principal, relevant, salient, serious, signal, significant, something, standout, urgent, vital, weighty |
| Antonyms: | inappreciable, insignificant, little, nonessential, small, trivial, unimportant, unsubstantial |