Antonyms for the phrase "was tedious" can include stimulating, exciting, engaging, interesting, lively, captivating, intriguing, riveting, enthralling, and fascinating. These words denote activities or experiences that are not only attention-grabbing but also hold one's interest and maintain one's attention. These antonyms describe a state of being that is antithetical to the dull, tiresome, and repetitive nature of tedious activities. Whether it's exploring new hobbies or indulging in thrilling adventures, these antonyms describe a palette of activities that can keep one entertained and energized. Focusing on these antonyms can help anyone shake off the lethargy and ennui that come with tedious tasks and live life to the fullest.