名詞 lassitude:

1. a state of comatose torpor (as found in sleeping sickness)
   同義詞：lethargy, sluggishness
2. a feeling of lack of interest or energy
   同義詞：languor, listlessness
3. weakness characterized by a lack of vitality or energy
   同義詞：inanition, lethargy, slackness

las.si.tude

n.（名詞）
A state or feeling of weariness, diminished energy, or listlessness.See Synonyms at lethargy
懶散：疲倦、無活力或沒精打采的狀態(tài)或情緒參見 lethargy

來源：
Middle English
中古英語
from Old French
源自 古法語
from Latin lassitôdô
源自 拉丁語 lassitôdô
from lassus [weary] * see lô-
源自 lassus [疲倦的] *參見 lô-