What is another word for onerously?
Pronunciation: [ˈə͡ʊnəɹəsli] (IPA) 
Onerously refers to something that is burdensome, difficult or tiresome. There are several synonyms that can be used in place of onerously, such as arduously, laboriously, strenuously, gruelingly, tediously, wearisomely, oppressively, or demanding. Arduously implicates a difficult task due to physical or mental exertion. Laboriously suggests that a task takes a lot of effort and time to complete. Strenuously means expending great time and energy. Gruelingly pertains to an excessively demanding or harsh task. Tediously refers to a task that is boring or seemingly endless. Wearisomely is a task that is tiresome or fatiguing. Oppressively describes a task that is unjustly heavy or severe. Demanding refers to a task that requires rigorous effort to accomplish.
