1. Not easily borne; wearing
   "my duties weren't onerous; I only had to greet the guests"
   - burdensome, taxing

See also: heavy, onerously, onerousness

• vital organ
• vital principle
• vital sign
• vital statistics
• vitalisation
• vitalise
• vitaliser
• vitalising
• vitalism
• vitalist
• vitalistic
• vitality
• vitalization
• vitalize
• vitalizer
• vitalizing
• vitally
• vitalness
• vitals
• vitamin
• vitamin A
• vitamin A1
• vitamin A2
• vitamin B
• vitamin B complex