If you describe a society, its laws, or customs as oppressive, you think they treat people cruelly and unfairly.
The new laws will be just as oppressive as those they replace.
跟以前的法律一样,新法律也不会公正。
If you describe the weather or the atmosphere in a room as oppressive, you mean that it is unpleasantly hot and damp.
stifling
The oppressive afternoon heat had tired him out.
午后闷热的天气让他筋疲力尽。
An oppressive situation makes you feel depressed and uncomfortable.
the oppressive sadness that weighed upon him like a physical pain.
像肉体上的疼痛一样令人压抑的悲伤。