[noun] + なしで
なしに and なしで both mean "without" and attach to nouns or verb dictionary forms to indicate the absence of something or the omission of an action. They are similar in meaning but have subtle differences in usage and nuance.
なしに is used to express doing something without a certain action or condition that would normally be expected. It often carries the nuance that skipping that step is surprising, unusual, or noteworthy. It is used with verb dictionary forms via こと (ことなしに) or directly with certain nouns.
When used with verbs, ことなしに is the standard pattern:
なしで is more broadly used and simply means "without (having/using)". It describes the manner or condition under which an action takes place – the absence of a tool, resource, permission, or accompanying action.
Both forms are often interchangeable, especially with nouns. However, なしに tends to emphasize the unexpectedness or significance of the omission, while なしで is more neutral and describes the manner or means. In everyday conversation, なしで is more common, while なしに (especially ことなしに) appears more in written or formal contexts.
なしには is a related form that emphasizes that without a certain condition, something cannot happen. It is typically followed by a negative clause.