The word "misinstruct" means to give incorrect or faulty instruction or advice. To find antonyms for this word, we need to look for words that convey the opposite meaning. Some of the antonyms for misinstruct can be "educate," "guide," "teach," "instruct," "train," "inform," and "enlighten." These words imply that the information given is accurate and precise, and the recipient can learn, improve, or grow from it. Using the right language and communication is crucial in passing information, and an opposite of misinstruct is tantamount to positive instruction, leading to success or desired results.