inconsistent

adj. incompatible, contradictoire; inconsistant; illogique

inconsistent [NnkBn'sNstBnt] adj
(a)(thing) incompatible, en contradiction, en désaccord (with, avec); contradictoire (with, à);
his words are inconsistent with his conduct, ses paroles ne cadrent pas avec sa conduite;
(b)(person) inconsistant, inconséquent;
they're inconsistent in what they say, leurs dires sont contradictoires;
you're being inconsistent, tu te contredis.