The antonyms for "un-troubledness" include a plethora of words indicating anxiety, stress, worry, and turmoil. Some of the antonyms include agitation, care, distress, anxiety, unease, uneasiness, disturbance, unrest, turbulence, perturbation, and apprehension. These words characterize the exact opposite of "un-troubledness" and indicate a state of mind where one is not at ease and feels restless. People experiencing these feelings often find it challenging to focus on the task at hand and feel distracted, leading to procrastination and decreased productivity. Therefore, the antonyms of "un-troubledness" are an important reminder of the importance of mental peace and mindfulness in our daily lives.