[1] : WordNet (r) 2.0

negativism
     n : characterized by habitual skepticism and a tendency to deny
         or oppose or resist suggestions or commands syn: negativity
         ant: positivism
see also:
negativity positivism 

[2] : Moby Thesaurus II by Grady Ward, 1.0

126 moby thesaurus words for "negativism":
   abnegation, alienation, arrest, arrestation, arrestment, autism,
   autistic thinking, avoidance mechanism, blame-shifting, blockage,
   blocking, challenge, check, clogging, closing up, closure,
   combative reaction, compensation, complaint, constriction,
   counteraction, cramp, cynicism, decompensation, defeatism,
   defense mechanism, defiance, delay, demur, dereism,
   dereistic thinking, detainment, detention, dismalness,
   displacement, dispute, dissent, dissentience, dissociation,
   emotional insulation, escape, escape into fantasy,
   escape mechanism, escapism, fantasizing, fantasy, fixation, flight,
   foot-dragging, fractiousness, gloominess, gloomy outlook,
   hampering, hindering, hindrance, holdback, holdup, impediment,
   inhibition, interference, interruption, isolation, let, malism,
   nay, naysaying, negation, negative, negative attitude,
   negativeness, negativity, nihilism, nix, no, noncooperation,
   nuisance value, objection, obstinacy, obstruction, obstructionism,
   occlusion, opposition, overcompensation, passive resistance,
   pessimism, projection, protest, psychotaxis, rationalization,
   reaction, rebuff, recalcitrance, recalcitrancy, recalcitration,
   refractoriness, reluctance, remonstrance, renitence, renitency,
   repellence, repellency, repression, repulse, repulsion, resistance,
   restraint, restriction, retardation, retardment, retreatism,
   revolt, setback, sociological adjustive reactions, squeeze, stand,
   stranglehold, stricture, sublimation, substitution, suppression,
   uncheerfulness, uncooperativeness, wish-fulfillment fantasy,
   wishful thinking, withdrawal, withstanding

Negativism >> N Words
Negativism, definition of term: Negativism
negativism_pag1.html