The phrase "took under one wing" implies one person taking on the responsibility of guiding or mentoring another. Antonyms for this phrase could include "abandoned," "ignored," "neglected," or "rejected." These terms suggest a lack of care or attention, indicating that the opportunity for mentorship or guidance was not taken advantage of. Other antonyms might include "ignored," "rejected," "excluded," or "ostracized," which imply a deliberate refusal to offer help or support. In contrast, the phrase "took under one wing" connotes a positive association of care and guidance, indicating that the mentor has taken the younger person under their care, helping them grow and develop.