The phrase "most bushy-tailed" refers to someone who is enthusiastic and energetic. Antonyms for this phrase would include words such as lethargic, tired, and unenthusiastic. These words suggest a lack of energy and motivation, which is the opposite of what "most bushy-tailed" means. Other antonyms could include words such as sluggish, lazy, and apathetic. When someone is not "most bushy-tailed", they may lack the excitement and drive that is necessary to complete tasks and achieve goals. By understanding these antonyms, individuals can work to identify and overcome these traits, allowing them to lead a more successful and fulfilling life.