"Well actually..."

As the word-setter this might be an own-goal. As a word guesser, a random haphazard tactic might get you the word.

I'll Monte-Carlo my point but I have a warm bath tub waiting...

Well. It contains every letter.

Nope, it doesn't contain zeta (ζ), xi (ξ) and theta (θ).

I do this like... every single time (although with a shorter and slightly more common ancient Greek word). It's quite fun actually!