acumen → adapt
acumen (the ability to make correct judgments and quick decisions): He has great business acumen and expertise in technical matters.
acute (serious or severe): The water shortage is more acute than first thought.
acute (very good and accurate): Daniel still has very acute vision, though he is over ninety years old.
acutely (severely, extremely): Her eyes are acutely sensitive to light.
acutely (completely, fully): He was acutely aware that the company was losing money.
adamant (determined not to change one’s mind): I tried hard to persuade him but he was adamant.
adapt (modify, adjust, change): I have to adapt my plans to fit your schedule.
adapt (become familiar, get used to): We’ll adapt quickly to the new system.