The word "de testable" refers to something that is unacceptable or objectionable. Its antonyms can be "acceptable," "pleasing," "decent," or "commendable." Something that is acceptable is considered to be suitable, and it meets the required standard. Similarly, something that is pleasing is found to be appealing or attractive. When something is described as decent, it means it conforms to acceptable standards of behavior, and it is morally correct. On the other hand, something that is commendable is praiseworthy or deserving of recognition. Therefore, depending on the context of use, the antonyms of "de testable" can be swapped for words that denote positivity, acceptability, and goodness.