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Synonyms for

completely

6 synonyms and better words for “completely,” each with its precise meaning and an example so you pick the one that actually fits, not just the nearest match.

utterly

/ˈʌt-ər-li/Elevated

To the fullest or most extreme degree, leaving no part untouched.

She was utterly transfixed by the storm rolling in over the mountains.

Best for: Works well in both casual and formal writing; adds emotional intensity without sounding pretentious.

wholesale

/ˈhoʊl-seɪl/Punchy

In a sweeping, total manner affecting everything at once.

The new regime wholesale dismantled the policies of its predecessor.

Best for: Best for describing large-scale change or destruction; carries a blunt, forceful tone.

thoroughly

/ˈθʌr-ə-li/Elevated

In every detail and aspect, with nothing left incomplete or overlooked.

He had thoroughly exhausted every argument before conceding the point.

Best for: Fits formal and professional writing; implies careful, deliberate completeness.

root and branch

/ruːt ənd brænʧ/Literary

Totally and fundamentally, eliminating something down to its very origins.

The committee voted to reform the institution root and branch.

Best for: Idiomatic and vivid; suits political or reformist contexts and formal prose.

consummate

/ˈkɒn-sə-mət/Literary

In the most absolute and perfect sense, without any reservation or deficiency.

She was consummate in her devotion to the craft, never cutting a single corner.

Best for: Elevated and slightly formal; works beautifully in literary or admiring descriptions.

plenary

/ˈpliː-nər-i/Rare Gem

Full and absolute in extent, admitting no limitation or exception.

The council was granted plenary authority to act without further approval.

Best for: Rare outside legal or academic contexts; lends weighty, institutional gravitas to a sentence.

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