[mendacious] not telling the truth; habitually dishonest, lying, or untruthful.

[priggish] someone who is self-righteously smug, excessively proper, and irritatingly fussy about trivial moral or social rules. 

[cre·tin] a stupid person (used as a general term of abuse).

[varlet] a rascal or a dishonest, deceitful person

[je·june] naive, simplistic, and superficial.

[dog·mat·ic] inclined to lay down principles as incontrovertibly true.

[doo·fus] a stupid person.

[quid·nunc] an inquisitive and gossipy person.

[lu·gu·bri·ous] looking or sounding sad and dismal.

[truc·u·lent] eager or quick to argue or fight; aggressively defiant.

[vex·a·tion] the state of being annoyed, frustrated, or worried, or something that causes these feelings.

[pawk·y] having a mocking or cynical sense of humour.