The word Primely means mainly or primarily. The antonyms for Primely would be words that indicate secondary or peripheral. Some of the antonyms that can be used for Primely are secondarily, subordinate, incidentally, subordinately, indirectly, tangentially, peripherally, marginally, and minorly. These words refer to something that is of less importance or relevance when compared to something else. For instance, if you want to say that something is not primarily important or is less significant, then you can use any of these words as an antonym for Primely. These antonyms of Primely can be used to express a less important or less dominant status of something.