The antonyms for the word "more out-of-line" would be "in-line," "appropriate," "acceptable," "proper," and "conforming." When someone is described as "out-of-line," it suggests that they have behaved in a way that is unacceptable or inappropriate. Therefore, the opposite of this would be to behave in a manner that is deemed fitting, correct, or in alignment with established norms and standards. It is always important to be mindful of the impact our words and actions may have on others and to strive to consistently operate within the boundaries of accepted social behavior.