Find Antonyms

groundlessly Antonyms

Opposite of groundlessly

Pinning down the opposite of groundlessly requires matching its exact sense, so the antonyms and opposite words below are paired with a clear adverb definition and ranked by contrast strength.
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• adverb (Context 1)

In a manner that lacks any valid basis, reason, or justification; without foundation.

Usage Example

"The committee concluded that the whistle-blower had been justifiably accused of misconduct."

Strongest
justifiably
validly
Strong
reasonably
legitimately
soundly

Similar words to groundlessly

Words similar to groundlessly shift depending on context. Common synonyms include:

baselessly
unfoundedly
unjustifiably
causelessly
unreasonably
arbitrarily
See all synonyms of groundlessly

• Nearby Words

grounder
grounding
groundless
groundlessly
groundstroke
groundswell
groundwater

Cite this Entry

Wordmom. (2026). Antonyms for Groundlessly. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/groundlessly
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