Colossal means anything which is made of a big size, extent. It is extraordinarily great in the size and huge.
Synonyms: Prodigious, stupendous, large, huge.
Antonyms: Tiny, small.
1. China, by far the largest in the whole group, has a really colossal economy.
2. They are really colossal in the scale, ranging in height from seven to twelve feet tall.
3. 'Kumbh Mela' is colossal in size, more than 17 million people take part in this.