"bent ear" is a colloquial term that refers to listening to someone for an extended period. Whereas there are no exact antonyms to this phrase, words like ignore, disregard, overlook, dismiss or reject may convey similar meanings. When we ignore someone, we choose not to acknowledge them, while disregarding someone means we fail to consider their needs or feelings. Overlooking means we miss something important, while dismissing someone implies we do not see them as important. Lastly, the word reject signifies outright refusal or denial. Hence, while these antonyms may not fit the exact definition of "bent ear", they share similar contexts and sentiments.