Radoncalous 

When Something Is Amazing, Crazy, Sick, Leight, Tight, Beast

Dude, that party last night was radoncalous!

Radoncalous by MariaZombiefrommyspacee April 11, 2009

ridonculous 

Functionally similar to the word "ridiculous," this word is often used in its place for extra emphasis.

There's a ridonculous amount of cheddar cheese stuck in the printer.

ridonculous by 755coop3 April 23, 2004

ridonculous 

(adjective) - ridiculous

Roald Dahl's BFG uses this word. This may be the origin of the word. First published in 1982.

Some of the other origins I've seen suggested are ridonculous.

ridonculous by doof0000 June 16, 2011

radonkulous 

Slang word for ridiculous.

Person A: HOLY SHIT I BLEW MY LOAD ALL OVER MY KEYBOARD
Peron B: HHAHA WTF THAT'S RADONKULOUS!

radonkulous by Stephen McMahon December 26, 2004

Ridonculous 

When ridiculous knows no bounds

"Check out the hunk of blue cheese he's got on that wing."

"That's ridonculous!"

Ridonculous by Todd Benson March 2, 2004

Redonculous 

(rE-D'on-kU-lus); Adjective, can be loosely used as a noun in certain situations.

Closely related to ridiculous.

Pertains to any situation, and happenstance that isn't to be taken lightly; This is an advancement of the word ridiculous, can be used in a variety of situations / brick-a-brack.

For instance, your drummer who is waiting to start practice and tryout a new singer calls you for the third time..

“Dude, …I’ll get there when I can; the freeway has been blocked for over 45 minutes…this is f’n redonculous..”

Redonculous by M. McConachie February 16, 2006

Redonculous 

When Ridiculous just isnt enough to discribe the situation

Fuck ridiculous that shit was Redonculous

Redonculous by GGRobbie September 22, 2006