
1) Apish 2) Banal 3) Cliched 4) Commonplace 5) Conventional 6) Copied 7) Corny 8) Dull 9) Hackneyed 10) Old 11) Platitudinal 12) Platitudinous 13) Secondary 14) Slavish 15) Stale 16) Stock 17) Threadbare 18) Timeworn 19) Trite 20) Uncreative 21) Unquestioning
Found on
https://www.crosswordclues.com/clue/unoriginal

1) Banal 2) Bromidic 3) Cliched 4) Commonplace 5) Conventional 6) Corny 7) Derivative 8) Hackneyed 9) Imitative 10) Moth-eaten 11) Not original 12) Old-hat 13) Platitudinal 14) Platitudinous 15) Ready-made 16) Secondary 17) Shopworn 18) Slavish 19) Stale 20) Stock 21) Threadbare 22) Timeworn 23) Tired
Found on
https://www.crosswordclues.com/clue/unoriginal

[
adj] - not original
Found on
http://www.webdictionary.co.uk/definition.php?query=unoriginal
adjective not original; not being or productive of something fresh and unusual; `the manuscript contained unoriginal emendations`; `his life had been unoriginal, conforming completely to the given pattern`- Gwethalyn Graham
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.