medieval
(also mediaeval), adj of the Middle Ages, about AD 1100-1400 中古的, 中世纪的(约公元1100-1400年)
medieval history, literature, etc 中世纪的历史、 文学等
The conditions were positively medieval, ie very primitive. 条件十分简陋.
We also make the fundamental error of announcing our resolutions to everybody so that we look even more foolish when we slip back into our bad old ways.