The antonyms for the word "pro-claims" can be quite contradictory in nature. While "conceals" represents the opposite, implying hiding or keeping secrets, "denies" suggests outright rejection or disavowal of a statement. Another antonym could be "silent," which signifies a lack of expression or communication, particularly on a particular topic. Similarly, "misleads" is also an antonym for "pro-claims," since it suggests intentionally deceiving or misleading others. Lastly, "understates" is also an antonym of "pro-claims," indicating that one is downplaying or minimizing their statements rather than making bold claims. Overall, these antonyms reflect the complexity of language and the multiple ways that words can be interpreted.