burdensome
Definitions
Difficult to carry out or fulfill; taxing.
Causing difficulty or hardship; oppressive.
Examples
The heavy backpack became increasingly burdensome as we hiked further up the mountain.
She found the complex legal paperwork to be quite burdensome and time-consuming.
Synonyms
onerous taxing demanding cumbersome oppressive strenuous troublesome
Antonyms
effortless light easy manageable convenient uncomplicated simple