almost the same as the word in the question
larger > enlarge
little
ambient, umbrage, immense, emerged
enormous can this be it
extensive, huge, vast, immeasurable
Slender?
calmer
'Minute' means something tiny.
majority
Immense is a synonym for the word big. It begins with the letter i.
The most well known antonym for 'immense' is... 'little' !
Incomprehensive
Oracle