W: (adj) positive [Indirect via negative] (characterized by or displaying affirmation or acceptance or certainty etc.) "a positive attitude"; "the reviews were all positive"; "a positive benefit"; "a positive demand"
S: (adj) antagonistic, antipathetic, antipathetical (characterized by antagonism or antipathy) "slaves antagonistic to their masters"; "antipathetic factions within the party"
W: (n) antagonism [Related to: antagonistic] (the relation between opposing principles or forces or factors) "the inherent antagonism of capitalism and socialism"