Fecklessness refers to a lack of determination, resourcefulness, or effectiveness when faced with difficult circumstances. Antonyms for fecklessness include resilience, perseverance, tenacity, determination, and fortitude. These terms describe a person's ability to overcome obstacles and achieve success despite setbacks or difficulties. Another antonym for fecklessness is resourcefulness, which implies a capacity for creativity and innovation in problem-solving. Responsibility is another antonym for fecklessness, as it suggests reliability, accountability, and a willingness to take charge of one's own life. All of these terms highlight the importance of strength and initiative in achieving goals and fulfilling one's potential.