1. Able to be refuted
   - questionable, refutable, confutable

See also: confute, deniable

• sulphuric acid
• sulphurised
• sulphurous
• sulphury
• sultan
• Sultan of Swat
• sultana
• sultanate
• Sultanate of Oman
• sultrily
• sultriness
• sultry
• sum
• sum of money
• sum total
• sum-up
• sumac
• sumac family
• sumach
• Sumatra
• Sumatran
• Sumer
• Sumerian
• Sumerology
• summa