What does groundless mean in English?

You can learn groundless Pronunciation, Grammar & Synonyms in this most authoritative English Dictionary.

groundless Meaning, Definition, Pronunciation, Grammar & Synonyms❤️

Undoubtedly, many of those attacks were groundless, paranoid and motivated by fear.
He concludes that they are largely groundless myths.
The first claim is groundless; the second is false.
The book helps any reader shed such groundless prejudice.
The most damaging argument against referendums - that they prompt intolerance - was found to be groundless in the case examined.
By any reasonable standard, these worries proved groundless.
But such a conjecture is, for now, groundless.
For those intellectuals who held optimistic views of democracy, such an anxiety was no more than an imaginary or groundless fear.