Unconvincing in example sentence
Aside from being coarse and dim, these phony people are incredibly unconvincing, as is the tidy scenario and the bungalow near the beach where the kids reside (one young man, who wears muscle shirts to tell us he's gay, hears Diane Keaton say, "Surrender, Dorothy" and actually asks, "That's from "The Wizard of Oz", right?"...no, genius, it's from "Citizen Kane"!).