1. Having a difficult and contrary disposition
   - cantankerous, crotchety

See also: ill-natured, orneriness [N. Amer]

• orangery
• orangewood
• orangish
• orangish-red
• orangutan
• orangutang
• Orasone
• orate
• oration
• orator
• oratorical
• oratorio
• oratory
• oratrix
• orb
• orb web
• orb-weaver
• orb-weaving
• orb-weaving spider
• orbicular
• orbiculate
• orbiculate leaf
• Orbignya
• Orbignya cohune
• Orbignya martiana