featureless

/ˈfitʃərləs/
adjective
  1. Lacking distinctive or interesting characteristics; plain and unremarkable.
    • The new building's design is completely featureless, just a gray concrete box.
    • Her essay was so featureless that the teacher couldn't remember anything about it.
    • The landscape was flat and featureless, with no trees or hills in sight.
Antonyms
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