C-grade

Near-synonyms: second-rate, third-rate; see also Thesaurus:mediocre

Source: wiktionary

[…] Easter is April 20, and I have set an informal goal of having 50,000 words on paper by that date—not necessarily good words, mind you, just C-grade stuff that I can work with and refine during the revision process.

Source: wiktionary

Yet there's still a tang of C-grade cliché to a movie too obviously trying to pull off global intrigue on a low budget, with a surfeit of alpha-male posturing, hamfisted dialogue, and incessant gunfire ultimately failing to provide sufficient credibility (let alone production values).

Source: wiktionary

The basic problem with Yahoo was that it never figured out what kind of company it was after it was beaten out by Google. It never figured out how to be more than a C-grade version of Google.

Source: wiktionary