A more thorough explanation:

inhonestus (in-hə-nes-təs), adj. - not honest; deceitful; dishonest

• He was caught in an inhonestus act of stealing money from the cash register.
• The politician's inhonestus behavior was exposed by the media.
• She lied to her friend about where she was going, which was an inhonestus thing to do.

The examples illustrate the definition of inhonestus as they all describe behavior that is not honest or truthful. In each example, someone is being deceitful or dishonest in some way, which is what the word inhonestus means.