The Word is:”important”
of great significance or value.
“important habitats for wildlife”
synonyms: main, chief, principal, key, major, salient, prime, dominant, foremost, supreme, predominant, paramount, overriding, cardinal, crucial, vital, indispensable, critical, essential, significant, urgent; More
antonyms: unimportant, inessential, irrelevant
(of a person) having high rank or status.
“an important senator”
synonyms: powerful, influential, of influence, well-connected, high-ranking, high-level, top-level, controlling, dominant, formidable; More
antonyms: unimportant, insignificant
(of an artist or artistic work) significantly original and influential.
“writers as important as Hopkins”
synonyms: significant, consequential, momentous, of great moment, of import, of great import, of great consequence, far-reaching, major; More
antonyms: unimportant, trivial
Source credit: Google