Synonyms for Off the wall:

• adj.

  •absurd (adjective)
  • goofy,
  • preposterous,
  • batty,
  • Daffy,
  • flaky,
  • fooling around,
  • silly,
  • irrational,
  • campy,
  • dippy,
  • idiotic,
  • jokey,
  • gagged up,
  • campiest,
  • freaky,
  • loony,
  • laughable,
  • inane,
  • campier,
  • tomfool,
  • for grins,
  • ludicrous,
  • off the wall,
  • joshing,
  • incongruous,
  • nonsensical,
  • foolish,
  • stupid.
  •bizarre (adjective)
  • fantastic,
  • ridiculous,
  • far-out,
  • way-out,
  • grotesque,
  • unusual,
  • freakish,
  • comical,
  • offbeat,
  • extraordinary.
  •comic/comical (adjective)
  • diverting,
  • fool,
  • humorous,
  • entertaining,
  • jerky,
  • mickey mouse,
  • funny,
  • dizzy,
  • risible,
  • waggish,
  • light,
  • jocular,
  • droll,
  • whimsical,
  • priceless.
  •daft (adjective)
  • deranged,
  • touched,
  • unbalanced,
  • asinine,
  • witless,
  • in the ozone,
  • crackers,
  • dopey,
  • unsound,
  • simple,
  • fried,
  • insane,
  • half-baked,
  • cracked,
  • bonkers,
  • bedlamite,
  • halfbaked,
  • whacko,
  • out of one's gourd,
  • mad,
  • demented,
  • giddy,
  • unhinged,
  • lunatic.
  •eccentric (adjective)
  • capricious,
  • freak,
  • erratic,
  • quaint,
  • abnormal,
  • quizzical,
  • irregular,
  • aberrant,
  • wild,
  • unnatural,
  • anomalous,
  • uncommon,
  • cockeyed,
  • way out,
  • far out,
  • characteristic,
  • idiosyncratic.
  •far out (adjective)
  • most bohemian,
  • radder,
  • nonconformist quirky,
  • more bohemian,
  • out of world,
  • more hippie,
  • out world,
  • raddest,
  • most hippie,
  • ultra modern,
  • out this world.
  •illogical (adjective)
  • faulty,
  • unconnected,
  • groundless,
  • implausible,
  • inconsistent,
  • hollow,
  • incorrect,
  • false,
  • invalid,
  • fatuous,
  • spurious,
  • senseless,
  • inconsequent,
  • fallacious,
  • inconclusive,
  • specious,
  • untenable,
  • unsubstantial,
  • sophistic,
  • unscientific.
  •queer (adjective)
  • disquieting,
  • doubtful,
  • shady,
  • suspicious,
  • unorthodox,
  • fishy,
  • remarkable,
  • questionable,
  • eerie,
  • dubious,
  • mysterious,
  • uncanny,
  • atypical,
  • puzzling.
  •spacey/spacy (adjective)
  • out to lunch,
  • spaced out,
  • flighty.
  •unconventional (adjective)
  • in dividual,
  • most uncustomary,
  • in-dividual,
  • avantgarde,
  • un-customary,
  • more uncustomary,
  • out ordinary,
  • un-ceremonious,
  • un-conventional,
  • most anarchistic,
  • un customary,
  • un conventional,
  • in-formal,
  • avant garde,
  • free easy,
  • more anarchistic,
  • most weirdo,
  • more weirdo,
  • out of ordinary,
  • non conformist,
  • in formal.
  •unreasonable (adjective)
  • in consequential,
  • un reasoned,
  • in-consequential,
  • far fetched,
  • more reasonless,
  • full hot air,
  • un reasonable,
  • un-reasonable,
  • in-coherent,
  • un-reasoned,
  • most reasonless.

• Other synonyms:

  •adj.
  • facetious,
  • farcical,
  • fly ball,
  • hippie,
  • illogical,
  • ironic,
  • irrelevant,
  • joking,
  • kooky,
  • meaningless,
  • quirky,
  • singular,
  • unproved,
  • witty,
  • oddest,
  • funnier,
  • foolheaded,
  • side-splitting,
  • absurd,
  • anarchistic,
  • bizarre,
  • casuistic,
  • daft,
  • eccentric,
  • off the beaten track,
  • rad,
  • reasonless,
  • rum,
  • rummy,
  • self-contradictory,
  • sophistical,
  • spacy,
  • unconventional,
  • unreasonable,
  • Gelastic,
  • Gump,
  • schtick,
  • uncustomary,
  • boffo,
  • out in left field,
  • non-conformist,
  • queer,
  • not following,
  • without basis,
  • without foundation,
  • full of hot air,
  • all wet,
  • head-strong,
  • bugged out,
  • extra ordinary,
  • fooler,
  • freaker,
  • goofus,
  • grody,
  • horse tail,
  • horse's tail,
  • off beaten track,
  • ultra-modern.
  •n.
  • dotty,
  • screwy.