Another Word for Significant: 230+ Synonyms & Alternatives

Whether you’re polishing an essay, drafting a formal letter, or just tired of repeating the same word, “significant” has more alternatives than most people realize. Merriam-Webster alone lists over 230 synonyms for “significant” and its variations.

Synonyms for significant: 230 (Merriam-Webster) · Synonyms for significantly: 135 (Merriam-Webster) · Synonyms for significant other: 38 (Cambridge Dictionary) · Academic alternatives: Notable, relevant, substantial

What’s a better word than “significant”?

The right replacement depends entirely on what you mean. “Significant” covers a lot of ground — it can mean large in size, important in impact, or weighted with meaning. That’s why dictionaries offer such vastly different synonym lists.

General synonyms

• Major — emphasizes scale or importance (“a major breakthrough”)
• Important — the most versatile direct substitute
• Big — informal but effective for size or impact
• Substantial — adds a sense of tangible weight
• Historic — for events of lasting importance

Merriam-Webster leads with “major, important, historic, big” as primary synonyms. Collins Dictionary offers “important, marked, notable” — the subtle difference being that “marked” implies something noticeable rather than necessarily large.

Synonyms by context

For statistical contexts, consider “substantial” or “considerable” over “significant” — both carry a quantitative weight that feels more precise in data-driven writing.

WordHippo defines “significant” as “having great meaning” or “important, large, or great.” The simplicity of this definition is why the word is so versatile — and why synonyms must be chosen with care.

What words can I use instead of “significantly”?

As an adverb, “significantly” modifies verbs and adjectives to indicate degree or impact. Thesaurus.com lists 135 alternatives, ranging from formal to conversational.

Adverb synonyms

• Substantially — formal, quantitative (“sales increased substantially”)
• Considerably — similar weight, slightly less technical
• Markedly — emphasizes noticeable change
• Dramatically — implies stark contrast or sudden shift
• Noticeably — focuses on observer perception

Essay and academic use

For academic writing, “substantially” and “considerably” are the strongest choices — they carry scholarly weight without sounding stilted. Avoid “significantly” in statistical contexts unless you mean it in the technical sense (p < 0.05), where it might confuse readers.

Synonyms for “significantly” include substantially, considerably, and markedly — each carrying slightly different implications of degree. (Thesaurus.com)

Thesaurus.com for love includes synonyms like beloved, darling, dear, flame, honey, paramour — many of which double as relationship descriptors depending on context.

What is another name for significant other?

“Significant other” entered common usage as a gender-neutral way to refer to a romantic partner. The term is quite formal, and many alternatives exist depending on your tone and context.

Common alternatives

• Partner — the prevailing neutral choice
• Better half — informal, affectionate, common in British English
• Lover — implies romantic or sexual relationship
• Boyfriend / Girlfriend — informal but widely understood
• Spouse — specifically for married partners

Merriam-Webster lists 27 synonyms for “significant other,” including partner, spouse, better half, mate, consort, and domestic partner. Power Thesaurus goes further with over 714 alternatives, though many are obscure or playful.

Formal terms

• Domestic partner — formal, often with legal implications
• Life partner — implies long-term commitment
• Consort — elevated, slightly archaic
• Paramour — romantic, sophisticated, literary

I personally think “sweetie” and “paramour” are fun, elevated, and classy alternatives, without the weight that “significant other” carries. (SGN.org)

Gender-neutral options from Good Men Project include partner, lover, significant other, boo, and goyfriend — though some of these carry playful or generational connotations.

What is significant in simple terms?

At its core, “significant” means something is important, large, or weighted with meaning. It’s one of those words that works in almost any context, which is exactly why finding alternatives feels challenging.

Basic meaning

• Important — having value or consequence
• Large — in size, amount, or degree
• Great — outstanding or remarkable
• Weighty — having serious importance

WordHippo defines “significant” as “having great meaning” or “important, large, or great.” The simplicity of this definition is why the word is so versatile — and why synonyms must be chosen with care.

Examples

• “A notable achievement” — noteworthy and praiseworthy
• “A substantial portion” — large in quantity
• “A meaningful connection” — weighted with personal significance
• “A key finding” — crucial to understanding

The implication is clear: context determines which synonym fits. Writers who ignore this nuance risk sounding vague or imprecise in professional documents.

What is another word for significant in academic writing?

Academic contexts demand precision. “Significant” can feel vague in scholarly work, where readers expect specificity about what kind of significance you mean — statistical, practical, theoretical, or historical.

Academic alternatives

• Notable — worth attention, deserving notice
• Substantial — large in degree or amount
• Relevant — directly connected to the argument
• Considerable — significant in quantity or importance
• Impressive — evoking admiration for quality

BachelorPrint identifies “notable, relevant, substantial” as the top academic alternatives. Collins adds “considerable” and “impressive” to this list — words that carry scholarly weight without sounding overwrought.

Specific searches

• 9-letter synonyms: substantial (10), considerable (11), noteworthy (10)
• Starting with “e”: essential, eminent, exceptional
• Highly significant: momentous, critical, pivotal, crucial

“Significant other” and “life partner” both have an artificial, passionless taint, as if inspired by bureaucratic policy. (Daily Writing Tips)

Business-specific alternatives include material (financial documents), substantial (investments), key (stakeholders), strategic, and pivotal. “Material” has a specific legal meaning in financial contexts that writers must respect.

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Beyond basic options like major or important, compilations detailing top synonyms by context offer nuanced alternatives tailored to politics, academia, and everyday use.

Frequently asked questions