adj. 25B6; adjective GROUNDLESS, baseless, unsubstantiated, unproven, unsupported, uncorroborated, unconfirmed, unverified, unattested, without basis, without foundation, speculative, conjectural.
proven.
adj. 25B6; adjective GROUNDLESS, baseless, unsubstantiated, unproven, unsupported, uncorroborated, unconfirmed, unverified, unattested, without basis, without foundation, speculative, conjectural.
proven.
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012