The antonyms for the word "wert unsuitable" are many and varied. Some of the most common antonyms include "suitable," "appropriate," "fitting," "adequate," and "proper." These terms all suggest something that is a good match or a good fit for a particular situation or purpose. Other antonyms for "wert unsuitable" might include terms like "competent," "qualifying," "valid," "capable," "efficient," or "proficient." These words all connote some level of ability or capability that is required for success in a given endeavor. Regardless of which antonyms you choose to use, the overall idea is that the opposite of "wert unsuitable" is something that is desirable, appropriate, and effective.