| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | important, vital |
| Synonyms: | capital, cardinal, chief, constitutive, crucial, foremost, fundamental, imperative, indispensable, leading, main, necessary, necessitous, needed, needful, prerequisite, principal, required, requisite, right-hand, wanted |
| Notes: | the words crucial, essential, and vital cannot be qualified (cannot be more or less...) |
| Antonyms: | accessory, auxiliary, inessential, minor, nonessential, secondary, subsidiary, unimportant |