Synonyms for IMPORTANT: major, significant, historic, big, meaningful, much, substantial, tectonic; Antonyms of IMPORTANT: unimportant, small, trivial, insignificant, little, minor, negligible, …

Find 153 different ways to say IMPORTANT, along with antonyms, related words, and example sentences at Thesaurus.com.

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Synonyms for IMPORTANT: significant, far-reaching, momentous, seminal, serious, substantial, urgent, weighty, powerful, eminent, …

Synonyms for IMPORTANT: consequential, influential, essential, crucial, considerable, critical, decisive; Antonyms for IMPORTANT: trivial, inconsequential, unimportant, obscure, unknown, unrecognized, …