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

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

Find 4,273 synonyms for important and other similar words that you can use instead based on 19 separate contexts from our thesaurus.

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

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

Jun 17, 2025 · Some synonyms for "important" include: "essential," "significant," "crucial," "pivotal," and "substantial."