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.
This shows how long it was before we deemed it necessary to make sure that all our children could share in the knowledge accumulated by the'happy few' during the past centuries.