The antonym for "un-wearied" is "weary." Weary is a feeling of being tired, exhausted, or fatigued. It is the opposite of un-wearied, which means not tired or having unlimited energy. Being weary can be caused by physical exertion, stress, or lack of sleep. It can affect productivity, mood, and overall health. Some antonyms for "un-wearied" are exhausted, fatigued, tired, drained, spent, and sapped. These words describe the opposite of feeling energized and enthusiastic. It is essential to rest and recharge to avoid becoming weary and to maintain a healthy lifestyle.