1. Tasting or smelling like vinegar
   - acetose, acetous, vinegary 
2. Having a sour disposition; ill-tempered
   - vinegary

See also: ill-natured, sour, vinegarishness

• pessimal
• pessimism
• pessimist
• pessimistic
• pessimistically
• pessimum
• pest
• pester
• pestered
• pesterer
• pestering
• pesthole
• pesthouse
• pesticide
• pesticide poisoning
• pestiferous
• pestilence
• pestilent
• pestilential
• pestis
• pestis ambulans
• pestis bubonica
• pestle
• pesto
• pet