amateurish

amateur +‎ -ish.

• IPA^(key): /ˈæ.mə.t͡ʃʊɚ.ɪʃ/, /ˈæ.mə.tjʊɚ.ɪʃ/

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amateurish (comparative more amateurish, superlative most amateurish)

1. (derogatory) Suggesting or reflecting the efforts of an amateur; not seeming professional or polished.
   • 1964 September, “New Books: The History of Railways. By Erwin Berghaus. Barrie & Rockcliff. 35s.”, in Modern Railways, page 222:

     Some of the photographs are new and interesting, but many captions are amateurish, uninformative or simply careless.

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