Defectless means "free from defects". Therefore, antonyms for the word "more defectless" would be "less perfect", "imperfect", or "flawed". When something is not completely defectless, it means there are errors or problems present. Antonyms for "more defectless" imply that something is not entirely without faults. For example, a car may have minor dents or scratches, making it less than perfect. Similarly, a piece of writing may have spelling or grammatical errors, making it imperfect. Using antonyms for "more defectless" helps to describe something with more nuance and detail, giving a clearer picture of its features and qualities.