1. In a believable manner
   "he acted believably sincere" 
2. Easy to believe on the basis of available evidence
   - credibly, plausibly, probably, tenably

See also: believable

Antonym: unbelievably

• carronade
• carrot
• carrot family
• Chalcostigma
• Chaldaea
• Chaldaean
• Chaldea
• Chaldean
• Chaldee
• chaldron
• chalet
• chalice
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• chalk
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• chalkiness
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• challah