English word

Frivolous

Definitions

adjective

of little weight or importance
having no sound basis (as in fact or law)
lacking in seriousness
marked by unbecoming levity

Synonyms for frivolous

Closest evidence-backed alternatives.

minor
small
little
trivial
unimportant
worthless
slight
foolish

Frivolous - Meaning, Synonyms & Antonyms | Lexical Engine