onerouslyadv.

1851 Proc. Maryland Reform Convent. 430/2 They knew that the promises and assurances of those, who..induced Maryland to encumber itself with this immense debt, now so onerously saddled upon it, were..to meet the State's interest on the public debt.

1889 Amer. Statistics Assoc. 2 88 It is high testimony to the perfection of the insurance system that these mammoth losses..fall lightly on the many instead of onerously on the few.

1901 E. Z. Mezes Ethics xiii. 356 He has no right, after the example of Shylock, to use the promise as a means of onerously oppressing the promisor.

1951 Jrnl. Politics 13 264 It might be possible to develop a farm support program which would not be exorbitantly expensive nor onerously restrictive.

2001 I. McEwan Atonement 221 Proceed at haste..to Dunkirk for the purposes of immediate evacuation on account of being 'orribly and onerously overrun from all directions.