Adjective
ridiculous - Deserving or inviting mockery or laughter due to being absurd or unreasonable; outrageously unreasonable or exaggerated in a way that provokes disbelief.

They laughed when he made the ridiculous claim that he could lift a car by himself, but then lo and behold they watched him actually do it.
compliant - Being willing to do what one is asked to do, following set of rules, regulations, and standards.

Though most people don't enjoy paying taxes, they are compliant either because they feel it is right, or because they fear getting caught if they cheat.