1. Easy to believe on the basis of available evidence
   - believably, plausibly, probably, tenably

See also: credible

Antonym: incredibly

• sinking
• sinking feeling
• sinking fund
• sinking spell
• sinless
• sinlessness
• Sinn Féin
• sinner
• sinning
• Sinningia
• Sinningia speciosa
• Sino-
• Sino-Japanese War
• Sino-Tibetan
• Sino-Tibetan language
• sinoatrial node
• Sinologist
• Sinology
• sinoper
• sinopia
• sinopis
• Sinornis
• sinter
• sintered
• sinuate