Synonyms for Unimpressive:

• adj.

  •all (adjective)
  • unimpressive.
  •Other relevant words: (adjective)
  • unimposing.
  •unexceptional (adjective)
  • modest,
  • normal,
  • unmemorable,
  • run of the mill,
  • typical,
  • uneventful,
  • uninspired,
  • second-rate,
  • dull,
  • routine,
  • usual,
  • conventional,
  • characterless,
  • garden variety,
  • fair,
  • nothing to write home about,
  • so-so,
  • garden-variety.
  •unimposing (adjective)
  • slight.

• n.

  •
  • inadequate,
  • inferior,
  • disappointing,
  • substandard,
  • average,
  • unsatisfactory,
  • poor,
  • limited,
  • suboptimal.
  •Other relevant words: (noun)
  • commonplace,
  • undistinguished,
  • uninteresting.

• Other synonyms:

  •Other relevant words (noun):
  • homespun,
  • delicate,
  • pitiful,
  • incapable,
  • impotent,
  • unconvincing,
  • indifferent,
  • nonessential,
  • unexceptional,
  • dispensable,
  • no great shakes,
  • pedestrian,
  • middling,
  • feeble,
  • decent,
  • humble,
  • unimportant,
  • inept,
  • inappreciable,
  • pathetic,
  • inessential,
  • nugatory,
  • hopeless,
  • run-of-the-mill,
  • plain,
  • foolish,
  • unremarkable,
  • little,
  • irrelevant,
  • unpersuasive,
  • ordinary,
  • minute,
  • immaterial,
  • minor,
  • homely,
  • unsuccessful,
  • laughable,
  • small,
  • absurd,
  • ridiculous,
  • preposterous,
  • trifling,
  • unnoteworthy,
  • watery,
  • trivial,
  • fragile,
  • faint,
  • weak,
  • common,
  • puny,
  • unexciting,
  • funny,
  • Non-essential,
  • embarrassing,
  • dinky,
  • flat,
  • prosaic,
  • Pathetical,
  • incompetent,
  • negligible,
  • inconsiderable,
  • flimsy,
  • inefficient,
  • derisory,
  • technical,
  • inconsequential,
  • mediocre,
  • no big deal,
  • decrepit,
  • everyday,
  • Petit,
  • ludicrous,
  • unessential,
  • back burner,
  • unpretentious,
  • nothing special,
  • vain,
  • simple,
  • insignificant.

Antonyms for Unimpressive:

• adj.

  • all
    impressive.
  • unexceptional
    exceptional.
  • unimposing
    significant, ostentatious, arrogant, important, flashy.
  • Other antonyms:
    dazzling, arresting, palatial, awe-inspiring, formidable, staggering, stupefying, brilliant, striking, heroic, thundering, dramatic, glorious, noble, expansive, gallant, fulgurous, important-looking, astounding, eye-popping, fulgurant, awing, proud, amazing, splendid, lofty, grand, signal, spectacular, awesome, imposing, mind-boggling, stately, sensational, stunning, magnificent, majestic, grandiose, awful, astonishing, baronial.