After he was President which individual described himself as the acutist the US tutus and the arctest enemy of Southern slavery that ever existed George Washington Andrew Jackson Thomas Jefferson John Quincy Adams

Answer 1

The individual who described himself as the "acutist" (or "acutest") of the US and the "arktest" (or "archest") enemy of Southern slavery that ever existed is John Quincy Adams. After serving as President, Adams became a strong advocate against slavery and worked tirelessly to promote abolitionist causes.