onerously


on·er·ous

O0078300 (ŏn′ər-əs, ō′nər-)adj.1. Troublesome or oppressive; burdensome. See Synonyms at burdensome.2. Law Entailing more liabilities than benefits or imposing significant obligations.
[Middle English, from Old French onereus, from Latin onerōsus, from onus, oner-, burden.]
on′er·ous·ly adv.on′er·ous·ness n.
Thesaurus
Adv.1.onerously - in an onerous manner