impossible

/ɪmpˈɒsəbə‍l/

/ˌɪmˈpɑsəbəɫ/

impossible

not able to be or happen; not possible to do

antonyms : possible

totally unlikely

(used of persons or their behavior) not acceptable or reasonable

Impossible

something that cannot be done

Examples

1. The plot is almost impossible to follow.

2. Running a marathon without training would be almost impossible.

3. His dream seemed like an impossible goal, yet he pursued it relentlessly.

4. They were trying to achieve an impossible standard of perfection.