IMPOSSIBLE definition: not possible; unable to be, exist, happen, etc. See examples of impossible used in a sentence.

IMPOSSIBLE definition: 1. If an action or event is impossible, it cannot happen or be achieved: 2. An impossible…. Learn more.

Incapable of having existence or of occurring. 2. Not capable of being accomplished: an impossible goal. 3. Unacceptable; intolerable: impossible behavior. 4. Extremely difficult to deal with or tolerate: an …

Something that is impossible cannot be done or cannot happen. It was impossible for anyone to get in because no one knew the password. He thinks the tax is impossible to administer. You shouldn't …

Definition of impossible adjective in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

unable to be done, performed, effected, etc.: an impossible assignment. incapable of being true, as a rumor. not to be done, endured, etc., with any degree of reason or propriety: an impossible situation. …

Impossible refers to something that cannot be done, accomplished or achieved due to various factors such as existing laws, conditions or physical limitations. It denotes a situation or event that is not …

Mar 8, 2026 · Adjective impossible (not generally comparable, comparative more impossible, superlative most impossible) Not possible; not able to be done or happen.

impossible definition: not able to be done or happen. Check meanings, examples, usage tips, pronunciation, domains, and related words. Discover expressions like "impossible dream", "mission …

Impossible definition: Incapable of having existence or of occurring.