Non suiting is a phrase used to indicate that something is not suitable or fitting. Antonyms of non suiting would therefore include fitting, suitable, appropriate, becoming, proper, acceptable, desirable, and suitable. When something is fitting, it matches the expected norm or standard, whether in style, size, color, or suitability for a particular occasion or purpose. Suitable refers to something that is appropriate or fitting for a particular situation. Something that is becoming or proper is in conformance with the established norms or expectations of behavior, appearance, or manner. An acceptable option is one that is deemed appropriate or adequate, while a desirable alternative is one that is sought after or preferred.