Slacking off is a term used to describe the act of not working as hard as one should be. The crossword solutions for the term 'slack off' include WANE (4 letters), TAPER (5 letters), EASE (4 letters), LOOSEN (6 letters), ABATE (5 letters), EBB (3 letters), and EASEUP (6 letters). WANE means to gradually decrease in intensity or strength, TAPER means to become gradually smaller or narrower, EASE means to make something less difficult or severe, LOOSEN means to make something less tight or rigid, ABATE means to reduce in intensity or degree, EBB means to recede or diminish, and easeup means to relax or become less strict. All of these words can be used to describe the act of slacking off.