Huge, informally (4)
I believe the answer is:
mega
(Other definitions for mega that I've seen before include "extremely good" , "Informally great or large" , "As brilliant" , "Smashing" , "Terrific" .)
I believe the answer is:
mega
(Other definitions for mega that I've seen before include "extremely good" , "Informally great or large" , "As brilliant" , "Smashing" , "Terrific" .)