1. Sour or bitter in taste
   - acerbic, astringent 
2. Harsh or corrosive in tone
   - acerbic, acid, acrid, bitter, blistering, caustic, sulfurous [N. Amer], sulphurous [Brit, Cdn], virulent, vitriolic, sulphureous [Brit]

See also: sour, unpleasant

• margaric acid
• margarin
• margarine
• margarita
• Margasivsa
• margate
• margay
• margay cat
• marge
• margent
• margin
• margin account
• margin call
• margin of error
• margin of profit
• margin of safety
• marginal
• marginal cost
• marginal placentation
• marginal utility
• marginal wood fern
• marginalia
• marginalisation
• marginalise
• marginality