What does bludersome mean?

"Bludersome" is not a standard English word. It is likely a misspelling or a made-up word.

If you meant "ludicrous" or "absurd", those words convey a similar meaning of being ridiculous or nonsensical.

If you meant "blustery", that describes something noisy and boisterous.

Please provide more context or the full sentence where you encountered this word so I can better understand what you're looking for.