adj. Having no basis or foundation in fact; unfounded. Synonyms: baseless, groundless, idle, unfounded, unwarranted. These adjectives mean being without a basis or foundation in fact: a baseless accusation; groundless rumors; idle gossip; unfounded suspicions; unwarranted jealousy.

What is no basis in fact?

From Longman Dictionary of Contemporary Englishba‧sis /ˈbeɪsɪs/ ●●● S2 W1 noun (plural bases /-siːz/) 1 [countable] the facts, ideas, or things from which something can be developed Their claim had no basis in fact (=it was not true).

What does non basis mean?

Adjective. Without any grounds to support it. groundless. baseless. unfounded.