oppressive
Concise Oxford English Dictionary © 2008 Oxford University Press:
oppressive/əˈpresɪv/
▶adjective
- 1 harsh and authoritarian.
- 2 weighing heavily on the mind or spirits.
- 3 (of weather) close and sultry.
– derivatives
oppressively adverb,
oppressiveness noun.
oppressively adverb,
oppressiveness noun.
'oppressive' also found in these Oxford entries:

