And…?
Oh…oops! Guess I’ve been pronouncing it wrong, too (in my head…doubt I’ve ever said “bestial” aloud).
Turns out it’s supposed to rhyme (approximately) with “vestal”, as in virgin.
Partly because of TV. On “30 Rock” the character Jenna said she was in a movie “The Rural Juror” and no one knew what she was saying.
If an actress on a sitcom pretending to be an actress on a sketch comedy show has trouble saying the name of her pretend movie, it must be true.
Say “Rural Juror” five times in a row, quickly. I dare you.
Manipulate.
Sir, you have made my day. Maybe my year.
Irrevocable. I can never remember whether it’s irREVocable or irreVOCable or neither one. Even if someone tells me the correct pronunciation, it goes straight out of my head.
I also can’t visualise (auralise?) what it is about ‘rural’ that makes it the biggest contender in this thread.
I’m not a lady and much less a sir, but you’re most welcome 
As I was once taught as a way to keep the two apart: “My year at Yale was like a year in jail”.
Apocalyptic
I have had speech issues my entire life and I just CANNOT say this word. It always comes out “Apop-a-lipstick”.
Brewery trips me up as much as rural. I have to over-enunciate the 3 or 2 syllables to feel like I’ve got it right.
I always pronounce “specific” as “pacific.”
This. Also plural words like “hosts” or “breasts” - either they sound like the singular noun, or the “t” gets left out.
The rural juror was in a furor at the harbor, brought on by the error at the bureau.
Aluminium and Aluminum are the same thing one is a trade name the other an element, just one of the joys of English and American English
Prerequisite. It comes out “pre-we-quisite.”
No, most Americans leave off the first C. The rest of us can pronounce it just fine, thank you very much.
peculiar
Both are the element, spelled by different people. At least the two spellings are close, unlike Wolframium and Tungsten…