Meaning of “oppressive” - Learner’s Dictionary

oppressive

adjective uk us /əˈpresɪv/
UNFAIR

cruel and unfair:

an oppressive government/regime
HOT

If the weather or heat is oppressive, it is too hot and there is no wind:

oppressive heat
NOT RELAXING

not relaxing or pleasant:

an oppressive silence

(Definition of “oppressive” from the Cambridge Learner’s Dictionary © Cambridge University Press)