Dr. Bates is a self-pitying wimp, thoroughly unconvincing as a dentist and a lover.

The movie "ends on a cheerful note that, under the circumstances, seems thoroughly unconvincing.

(This film's footnotes in that regard are thoroughly unconvincing.)

It veers wildly between comedy and tragedy and has a thoroughly unconvincing happy ending tacked on.

"Sliver" is not helped by a thoroughly unconvincing New York atmosphere (in which the residents of the high-rise behave like members of one big happy family) and by a noticeable absence of glamour.

However, the majority of critics were more scathing and many of them saw the Mandrels as being thoroughly unconvincing (particularly the Doctor Who Appreciation Society, which described them as "cute rejects from The Muppet Show").

Your section on Newsnight last week was thoroughly unconvincing.

It is also glib, poorly reasoned and thoroughly unconvincing.

It's too bad the film couldn't be tougher about that, since it ends on a cheerful note that, under the circumstances, seems thoroughly unconvincing.