The antonyms for "provide details" can be summed up as to withhold, obscure, or keep secret. This could mean deliberately concealing information, giving only surface-level explanations, or providing incomplete and insufficient details. Other antonyms could include vagueness, generality, or ambiguity, where the meaning or message conveyed is murky and unclear. In contrast, providing details would mean being specific, thorough, and clear in one's communication. Details help to illuminate and clarify, rather than obfuscate and confuse. Thus, it is important to use language carefully and thoughtfully, choosing the right words to convey the intended meaning.