Groundless

//ˈɡɹaʊndləs// adj

adj ·Uncommon ·College level

Definitions

Adjective
  1. 1
    Without any grounds to support it; baseless.

    "[B]e the consequences what they may, they shall not move an inch, nor a hair's-breadth from the ground of their groundless spiritual independence, […]"

Adjective
  1. 1
    without a basis in reason or fact wordnet

Synonyms

All synonyms
unwarrantedbaselessbaselessbaselessbottomlessbuilt on sand

Example

More examples

"They are always believing a groundless rumor."

Etymology

From Middle English groundles, from Old English grundlēas, from Proto-Germanic *grundulausaz, equivalent to ground + -less. Cognate with Dutch grondeloos, German Low German grundlos, German grundlos, Danish grundløs, Swedish grundlös.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.