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Synonyms for foundationless
adj without substantiationAntonyms for foundationless
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the
Philip Lief Group.
groundless
adjective. without reason, justification
unjustifiable
adjective. unwarranted
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the
Philip Lief Group.