The antonyms for "mis-timed" are "well-timed," "appropriate," "opportune," "timely," "perfect," "fitting," "suitable," "proper," and "adequate." These words imply that the particular action or event happened at the right time, without being too early or too late. When something is well-timed, it is planned to occur at the most suitable moment, with the maximum benefit to the objective or outcome. In contrast, mis-timed events or actions can cause negative consequences, such as missed opportunities or wasted resources. Therefore, it is essential to be mindful of timing when making decisions or actions to ensure that they are carried out in the best possible way.