Massive, Colossal, Giant, Huge, There's quite a lot.
large
Big, Colossal, Large
large, huge, enormous
Happy = Joyful Big = Large Smart = Intelligent Brave = Courageous
The synonyms for gigantic are huge and enormous. Also: large, giant, massive, tremendous, immense, titanic
wide, large, extensive, deep
big, huge, gigantic
humongous gigantic large
Synonyms are words with similar meanings, such as big and large.
A synonym is a word that has a very similar meaning to some other word. For example, the words large and big are synonyms. Small and little are synonyms. But large and small are antonyms.
Long and short are not synonyms, rather they are antonyms. Words that have the same meaning (such as big and large) are synonyms. Words that have opposite meanings (such as big and small) are antonyms.
huge, large, fat, plump