Antonyms for the word "more appurtenant" are those that deviate from its meaning of being relevant, suitable, or applicable. Some of the opposites can include incongruous, irrelevant, pointless, disconnected, unnecessary, and meaningless. These antonyms indicate a lack of connection or suitability between two entities, making them incompatible or not fitting for each other. For instance, if something is appurtenant, it is related, associated, or connected to a particular purpose, giving it relevance and importance. Therefore, its opposite, incongruous, suggests that it does not match or relate to anything specific, making it irrelevant and unsuitable.