The antonyms for in-apropos are many and varied, as this term is often used to describe something that is not fitting or appropriate. Some antonyms for in-apropos include fitting, proper, appropriate, relevant, suitable, and appropriate. Other antonyms might be appropriate, fitting, right, suitable, appropriate, and relevant. No matter which antonym you choose to use, the important thing is to use it correctly in order to convey your intended meaning. Whether you are writing an essay, composing a letter, or simply communicating with others, it is crucial to choose the right words in order to express yourself effectively and accurately.