onerous

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

not easily borne;
wearing
- the burdensome task of preparing the income tax return
- my duties weren't onerous; I only had to greet the guests
- a taxing schedule
• Syn:
burdensome, taxing
• Similar to:
heavy
• Derivationally related forms:
onerousness, burdensomeness (for: burdensome)

• Từ đồng nghĩa / Synonyms:
  burdensome, taxing