Find the Synonyms of
MASSIVE:

Lump sum : a single payment made at a particular time, as opposed to a number of smaller payments or installments.
Strong : having the power to move heavy weights or perform other physically demanding tasks.
Little : small in size, amount, or degree.
Gaping : wide open.
Huge : extremely large; enormous.
Massive : exceptionally large.

Synonym of Massive is Huge.