The term 'more chilling' can be described by four crossword solutions: eerier (6 letters), scarier (7 letters), SPOOKIER (8 letters), and icier (5 letters). Eerier is an adjective meaning 'strangely disturbing or unsettling, ' while scarier means 'causing fear or alarm.' SPOOKIER is a synonym of scarier, meaning 'causing fear or dread, ' and icier is an adjective meaning 'very cold.' Together, these words describe a situation that is more frightening and colder than before.