oppressive
op-pres-sive
adjective
Unjustly inflicting hardship and constraint, or tyrannical and burdensome.
"The oppressive regime controlled every aspect of life."
adjective
Unpleasantly hot and humid, causing discomfort or a stifling feeling.
"The oppressive heat made everyone feel lethargic."
Thesaurus
Synonyms: tyrannical, domineering, tyrannous, heavy