Question

/-lɪs; -lɪs/ suff 後缀 (used widely with ns to form adjs 可与许多名词结合构成形容词) without 无; 没有: treeless * hopeless. > -lessly (forming advs 用以构成副词): meaninglessly. -lessness (forming uncountable ns 用以构成不可数名词): helplessness.