Which can be easily believed

Solution (By Examveda Team)

One word substitute is Credible.

Credulous: having or showing too great a readiness to believe things.
Creditable: (of a performance, effort, or action) deserving public acknowledgement and praise but not necessarily outstanding or successful.
Trustworthy: able to be relied on as honest or truthful.
Credible: able to be believed; convincing.