The antonyms for the phrase "can't make grade" could be "succeed," "exceed expectations," "outperform," "excel," and "achieve." These antonyms reflect a positive attitude towards one's abilities to achieve and accomplish their goals. By using these antonyms, the focus shifts from what one cannot do to what one can do. It empowers individuals to recognize their potential and work towards their goal, whatever it may be. These antonyms can be used as a motivational tool to encourage individuals and to remind them that they have the power to succeed if they persevere and work hard enough.