ETYM Latin adulterinus, from adulter.
Conceived in adultery.

Of questionable authenticity.

1. Accepted as real or true without proof; SYN. assumptive, taken for granted.
2. Adopted in order to deceive; SYN. false, fictitious, fictive, pretended, put on, sham.
3. Taken as one's right without justification; SYN. arrogated.

ETYM Etymol. uncertain.
Fraudulent; having a misleading appearance; SYN. fake, phony, phoney, bastard.

ETYM French contrefait, p. p. of contrefaire to counterfeit; contre (Latin contra) + faire to make, from Latin facere. Related to Counter, and Fact.
Not genuine; imitating something superior; SYN. imitative.

Intended to deceive; - S.T.Coleridge; SYN. fallacious, fraudulent.

ETYM Cf. French déceptif. Related to Deceive.
1. Causing one to believe what is not true or fail to believe what is true; SYN. delusory.
2. Tending to deceive or mislead either deliberately or inadvertently; SYN. misleading.

Failing to detonate; especially not charged with an active explosive.

Having the appearance of being real but lacking capacity to function.

Marked by duplicity; deceptive in words or action.

Broadly or extravagantly humorous; resembling farce; SYN. ludicrous, ridiculous.

Phony.