groundless
Without any grounds to support it; baseless.
Adjective
- 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, […] - 1840, Lewis Rose, chapter III, in An Humble Attempt to Put an End...
- At that stage any fears among home fans of a possession monopoly by Laudrup's side were proving groundless, with Cardiff having their fair share of the ball and territory. - 2013 November 3, Delme Parfitt, “Cardiff City...
Synonyms: baseless unfounded unsupported idle footless groundless ungrounded unjustified unproved unproven unsubstantiated
- Bottomless; having no bottom or floor.
Origin
From Middle English groundles (“bottomless”), 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.