The phrase "granted permission" refers to the act of allowing or authorizing someone to do something. Its antonyms include refused permission, denied permission, prohibited, blocked, and disallowed. Refused permission connotes a firm rejection, while denied permission means an official refusal. Prohibited suggests a complete ban, whereas blocked implies an obstacle to the permission request. Disallowed means that the permission was not given due to certain conditions or circumstances. In summary, while "granted permission" signifies an affirmative response, its antonyms convey a negative, restrictive, or obstructive meaning in varying degrees.