naysaying

nay·say  (ns)

tr.v. nay·said (-sd), nay·say·ing, nay·says (-sz)

To oppose, deny, or take a pessimistic or negative view of: They will naysay any policy that raises taxes.

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naysayer n.

Thesaurus

Noun

1.

naysaying - the act of saying no to a request denial - the act of refusing to comply (as with a request); "it resulted in a complete denial of his privileges"