I usually pronounce it like 'lee-bur', though at times I've tried a more French version which is closer to 'lee-bruh' but it doesn't flow nicely into 'office'.

I usually pronounce it like 'lee-bur', though at times I've tried a more French version which is closer to 'lee-bruh' but it doesn't flow nicely into 'office'. Hearing 'lib-ray/lee-bray'/'lib-er' (like liberty) I would know what you mean though. This just means it has ambiguous pronunciation, and there are many things like that. It's not "unpronounceable". Something unpronounceable to an English speaker would be something like words using a non-latin character set or words using latin characters in long or unfamiliar ways like random Finnish words or some words resulting from trying to romanize another language.