Pocket Thesaurus
Antonyms of approval
sanction, license, certificate, permission, summons, subpoena, passport, permit, ticket, pledge, warranty, right, pawn, authority, tag, pass, guarantee, testimonial, basis, commission, authentication, assurance, foundation, okay, earnest, go-ahead, credentials, word, token, security, carte blanche, green light, credential, sticker, ducat, shingle, verification, official document
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