The term 'less well' can be described by the crossword solutions WORSE (5 letters), SICKER (6 letters), and ILLER (5 letters). WORSE is an adjective that means of lower quality or WORSE in condition than something else. SICKER is an adjective that means having a disease or illness, or feeling unwell. ILLER is an adjective that means not in good health, or not feeling well. All three words describe a state of being that is WORSE than the norm.