Antonyms for the phrase "calling in question" include "affirming," "endorsing," "validating," "confirming," "ratifying," and "corroborating." These words indicate agreement with or support for a statement or premise, rather than doubt or skepticism. Other antonyms may be "acknowledging," "accepting," "granting," or "recognizing," which imply the admission of a fact or truth. Additionally, words like "emphasizing," "highlighting," "stressing," or "underscoring" can be used to give weight or importance to a particular point, without necessarily doubting or challenging it. By contrast, "calling in question" signals a critical attitude and a desire to investigate, clarify, or challenge a claim or assertion.