On this page you'll find 7 synonyms, antonyms, and words related to onerously, such as: burdensomely, difficultly, exhaustingly, heavily, laboriously, and troublesomely.
How to use onerously in a sentence
But the spirit of foreboding lay onerously upon him, and he slept so fitfully that the first gray of dawn found him up and abroad.
She used to read to the blind, and, more onerously, to the deaf.
Synonym of the Day
Choose the synonym for embellishment