"Trustable" is considered non-standard English, meaning it's not widely accepted or considered grammatically correct.
Instead, you can use the following words:
* Trustworthy: This is the most common and widely accepted alternative to "trustable." It means capable of being trusted.
* Reliable: This word means dependable and able to be counted on.
* Credible: This word means believable and convincing.
* Dependable: This word means able to be relied upon.
For example, you could say:
* "He is a trustworthy person."
* "She is a reliable source of information."
* "The evidence presented is credible."
* "He is a dependable employee."