indisposition
n[C, U]
1 (often euph 常作委婉语) slight illness; ill health 微恙; 不健康.
2 ~ to do sth (fml 文) feeling of unwillingness or disinclination to do sth 不乐意或不情愿做某事.
Knowing that the industrious ant lives in a highly organized society does nothing to prevent us from being filled with revulsion when we find hordes of them crawling over a carefully prepared picnic lunch.