When something is "bearing heavily," it is burdensome, oppressive, or overwhelming. Antonyms for this phrase include light-hearted, carefree, and unencumbered. Someone who is carefree is lighthearted and happy, without any stress or worries. Unencumbered refers to the feeling of being free from the constraints or responsibilities that may weigh heavily. A person can feel unencumbered when they are not held down by any heavy burdens or commitments. Other antonyms for bearing heavily include stress-free, effortless, and easy-going. These words all imply a sense of peace and relaxation, without the weight of life's many worries.