Crossword clues for Opposing: Abbr. 3 lettersAnswerClueNEGOpposing: Abbr.CSAUnion opposer: Abbr.SDSVietnam War opposer: Abbr.POSOpposed to negative: Abbr.MLKWhy I Oppose the War in Vietnam Grammy winner: Abbr.ERAProposal opposed by Phyllis Schlafly's Eagle Forum: Abbr.AGSTOpposed: Abbr.UNOPNot opposed: Abbr.AGSTOpposed to: Abbr.GATTFree market proposal opposed by Perot (abbr.)