u/TequilaMockingbirdM

I know this might be better suited for a general language or linguistics sub, but here I am.

Why do many Brits pronounce "sixth" more like "sickth", dropping the last part of the "x" sound?

I feel like such a dumb American for asking, especially since it's such a dumb thing to be nitpicky about, but honestly when I started becoming such a fan of Anglo radio and TV, it's one of the first things I noticed. (I felt like I was hearing it every other word in a show I watched with one of the children characters attending sixth form.)