The word "un-masks" refers to the removal of a covering or disguise. Therefore, antonyms for "un-masks" would include words such as "covers," "hides," "veils," "conceals," or "disguises." Such words suggest a sense of obscuring or masking something that is otherwise visible or known. Alternatively, antonyms for "un-masks" might include words such as "reveals," "exposes," "uncovers," "discloses," or "unveils." These words imply a sense of making something previously hidden or unknown more visible or apparent to the viewer or observer. Overall, antonyms for "un-masks" reveal a range of language choices that highlight the importance of masking or revealing information in various contexts.