とは限らない

とは限らない is used when you want to say that something is not guaranteed or not always the case. It softens statements that might seem obvious or commonly assumed, by reminding the listener that exceptions exist or outcomes can differ depending on circumstances. It can refer to future events, general statements, or judgments about situations, often contrasting with a more definite assumption. Typical contexts include everyday probability, opinions about people or situations, and statements that rely on conditions or incomplete information. Examples: - 彼が来るとは限らない。 (It’s not guaranteed that he will come / He may not come after all.) - 安いからといって、品質が良いとは限らない。 (Just because it’s cheap doesn’t mean the quality is good.) - この情報が正しいとは限らない。 (This information isn’t necessarily accurate.) - 時間があれば行けるとは限らない。 (Even if there’s time, you might not be able to go.) - 新しい政策がうまくいくとは限らない。 (The new policy isn’t guaranteed to work.)