The term 'LACKING SPIRIT' can be described by four crossword solutions: SOULLESS (8 letters), TAME (4 letters), VAPID (5 letters), and LANGUID (7 letters). Soulless implies a lack of emotion or life, while TAME implies a lack of excitement or enthusiasm. VAPID suggests a lack of energy or interest, and LANGUID implies a lack of vigor or animation. Together, these words paint a picture of something that is dull, uninspiring, and without spirit.