Fraudulent

Proverbs 20:17

17 Food gained by fraud tastes sweet,
but one ends up with a mouth full of gravel.

What at first seems to be worth while will not last. That is the point our wonderful King Solomon dared to make. Anything that is not obtained legitimately is subject to problems later. King Solomon talked more of the plight of the wicked as the wicked are more likely to take the route of fraud but one doesn't usually set out to be wicked. According to Merriam-Webster's Online Dictionary fraud is defined as:

1a : deceit, trickery; specifically : intentional perversion of truth in order to induce another to part with something of value or to surrender a legal right b : an act of deceiving or misrepresenting : trick
2a : a person who is not what he or she pretends to be : impostor; also : one who defrauds : cheat b : one that is not what it seems or is represented to be

Over time little bad habits add up. It's a lot like lying. It's difficult in the beginning but then it becomes such a habit that one doesn't see it as wrong anymore. But as Solomon said, one day it will no longer be sweet. Obtaining something in less than a stellar way ultimately puts one in a position to be suspicious of anyone close by that might find out the truth. Sooner or later one will regret the choices made to obtain that which was seen as so sweet. One can lose credibility and be seen as lacking integrity. In the society we live in, integrity is still seen as important though it's not always practiced.