niekonsekwencja in inglese:

I noticed a few inconsistencies in her argument.

Such inconsistency can become a very serious matter, particularly where I'm concerned. There is a much deeper inconsistency in them as theorists in relation to the general theory called Creative Evolution.

There is no reason to believe the inconsistency will stop.

It has to be admitted that there are many cases of inconsistency which detract from Europe's credibility.