👉 The term "hadnt" is a contraction used in English to indicate that an action or event did not happen. It can be used either as an adjective (meaning "not done") or as a noun (meaning "not have/hasn't/had/hadnt happened"). For example: 1. Hadnt I been there? 2. Didn't he come back? It is often used to express regret, remorse, or dissatisfaction with an action or situation that did not occur.