The term 'made useless' refers to something that is no longer efficient or functional. Its antonyms, on the other hand, can be useful, effective, operative or advantageous. If something is made useless, it means that it has lost its value, and antonyms of this phrase denote a positive connotation which can be constructive, fruitful, valuable or productive. The antonyms of made useless imply a sense of restoration or regeneration of the item, leading to its increased usefulness or value. Therefore, when something becomes ineffective or futile, the use of its antonyms can help in creating a positive shift towards productivity, adding value to the item, and making it worthwhile.