Inconsistent /(?)/

In·con·sist·ent

Inconsistent

a.
  1. Not consistent; showing inconsistency; irreconcilable; contradictory, or having contradictory implications; discordant; at variance, esp. as regards character, sentiment, or action; incompatible; incongruous.
    Compositions of this nature . . . show that wisdom and virtue are far from being inconsistent with politeness and good humor.
  2. Not exhibiting uniformity of sentiment, steadiness to principle, etc.; unequal; fickle; changeable.
    Ah, how unjust to nature, and himself, Is thoughtless, thankless, inconsistent man.