why not - just - lies 'Lies -damned lies and Statistics'

Doing it on purpose? "Dishonest".
Not aware of what you're doing? "Inconsistent".

We won't know until we call it out. And not always then.

As so many below, I think they refer to different situations. For me, 'intellectual inconsistency' refers to the situation where two positions presented by the same person are logically inconsistent in that both cannot be objectively true. I believe 'intellectual dishonesty' is when someone knows that what they are saying is untrue (with evidence to demonstrate that fact). I consider that the more serious problem. Often I find that when inconsistency is pointed out, it changes positions. Liars, on the other hand, are a different matter. We've had ample evidence recently that even when clearly objective evidence exists, some people are unwilling to admit it.

Very interesting idea...Prove me wrong, please: Aliens...

We are at a flipping point on the subject of Aliens....
pre-#2016 there are no aliens.
post-apocalypse here's all the classified shit we can smuggle out ...and....yes aliens.

Where are we? on that spectrum?

It pairs well with alternative facts.

I believe in the term "Fucking Liar" ...no sugarcoating!

When a person is deliberately misstating facts, principles or ideas, intellectual dishonesty is a more than appropriate term.

Not sure what/how you're using the terms, but I have found many people seem to feel no need for their beliefs to be cohesive.
Kind of amusing and aggravating at the same time.

I'm advocating for dumber than a box of hammers. Any other advocates out there?

Define what u mean and how they are different plz. I'm curious