The phrase "makes explicit" refers to the act of clarifying or elaborating on something that was previously unclear or implicit. Some antonyms for this term might include "obscures," "muddles," or "confuses," which describe the opposite effect of making something less clear or more difficult to understand. Similarly, "implies," "hints at," or "suggests" can be considered antonyms, as they imply a more subtle or indirect approach to conveying meaning. Other possible antonyms might vary depending on context, but could include terms like "veils," "camouflages," or "obfuscates," which all describe ways of hiding or concealing information.