frustrat-, frustra- +

The fraudulent manipulation of data in a biological study or survey; such as, when someone "submits false samples of a threatened species".

1. To deprive someone, or people, of a right, money, or property by fraud, or dishonest means: "The dishonest CEO defrauded the firm of millions of dollars."
2. Wrongfully taking something without the knowledge or consent of the owner; to cheat; such as, to defraud a man of his property rights after years of mortgage payments.

1. Having deprived someone of property or rights by trick, artifice, or deception.
2. Having used deceit, falsehoods, or trickery to obtain money, an object, rights, or anything of value belonging to another person or other people.

Any one who defrauds; that is, someone who takes from another his right, or others of their rights, by deception, or who withholds what is due; a cheat; an embezzler.

The illegal interference with the process of a political election.

Acts of fraud tend to involve the results of vote counts to bring about a desired election outcome, whether by increasing the vote share of the favored candidate, depressing the vote share of the rival candidates, or both.

1. Something intended to deceive.
2. Deliberate trickery intended to gain an advantage over someone or others.
3. Intentional deception resulting in injury to another person.
4. A person who makes deceitful pretenses.
5. The crime of obtaining money or some other benefit by deliberate deception.
6. Someone who deliberately deceives somebody else, usually for financial gain.
7. Something that is intended to deceive people: "She wrote a news story that was subsequently exposed as a fraud."
8. Etymology: "criminal deception" from about 1345, from Old French fraude; from Latin fraudem, fraus, "deceit, injury."

1. The quality of being fraudulent.
2. A fraudulent or duplicitous representation.
3. Something intended to deceive; deliberate trickery intended to gain an advantage over others.

1. Engaging in fraud; deceitful; not honest, true, or fair, and intended to deceive people.
2. Characterized by, constituting, or gained by fraud; such as, fraudulent business practices.
3. Etymology: Middle English, from Old French, from Latin fraudulentus, from fraus, fraud, "deceit".

He labors in vain who strives to please everyone.

You can not please the entire world.

Vain, useless, unprofitable, and completely useless.

1. To prevent someone or something from succeeding or something from coming to fruition: "All of their attempts to go out to sea were frustrated by high winds."
2. To make someone feel disappointed, exasperated, or weary because of thwarted goals or unsatisfied desires.
3. To cause feelings of discouragement or bafflement.
4. To make ineffectual or invalid; to nullify.

1. Anything that makes (plans, efforts, etc.) worthless or of no avail; or that which defeats or nullifies.
2. Anyone who disappoints or thwarts the efforts of someone who is trying to accomplish a goal or purpose.

1. An act of hindering someone's plans or efforts.
2. A feeling of annoyance at being hindered or criticized.
3. The motivational and/or affective state resulting from being blocked, thwarted, disappointed or defeated.
4. Lexicomedy: Trying to find your glasses without your glasses.

1. Causing a feeling of dissatisfaction; often accompanied by anxiety or depression, resulting from unfulfilled needs or unresolved problems.
2. A situation preventing realization or attainment of a desire.

Making void; rendering null; as, a frustratory appeal.