Concept:An antonym is a word with the opposite meaning. Gigantic means extremely large. The opposite is very small.
Explanation:The word "gigantic" refers to something huge in size. To find its antonym, we look for a word that means very small.
- Tiny (A) means very small — it is the correct antonym.
- Huge (B) is a synonym of gigantic, not an antonym.
- Enormous (C) also means extremely large — same meaning.
- Vast (D) means very great in size — similar to gigantic.
Thus, only "Tiny" gives the opposite meaning.
Answer:A. Tiny