Definition for Unsound:

• Not sound; defective; infirm; sickly; not orthodox; not sound in character; not honest; not to be trusted; not solid; not real; not substantial; not compact; not well established.

Synonyms for Unsound:

• adj.

  •bad (adjective)
  • detrimental,
  • baneful,
  • inadequate,
  • ill-suited,
  • arrant,
  • black,
  • inferior,
  • irremediable,
  • inadvisable,
  • displeasing,
  • vile,
  • wretched,
  • poor,
  • unpleasant,
  • unfavorable.
  •chancy (adjective)
  • iffy.
  •daft (adjective)
  • witless.
  •damaged (adjective)
  • flawed,
  • in poor condition.
  •dangerous (adjective)
  • perilous,
  • treacherous,
  • hairy.
  •erroneous (adjective)
  • inexact,
  • all wet.
  •false (adjective)
  • incongruous,
  • untruthful,
  • off the mark,
  • casuistic.
  •jerry-built (adjective)
  • shoddy.
  •loco (adjective)
  • around the bend.
  •non compos mentis (adjective)
  • Non compos.
  •not well; flimsy (adjective)
  • insane,
  • wobbly,
  • unbacked,
  • unsteady,
  • unwell,
  • ailing,
  • rickety,
  • not solid,
  • in poor health,
  • unhinged,
  • dangerous,
  • ill,
  • crazed.
  •shaky (adjective)
  • unsupported,
  • unfirm.
  •shallow (adjective)
  • shallow.
  •tottery (adjective)
  • tottery,
  • Rattletrap.
  •unhealthy (adjective)
  • unwholesome.
  •weak (adjective)
  • Impuissant.
  •wicked (adjective)
  • wicked.
  •wrong (adjective)
  • not right.

• n.

  •
  • absurd,
  • irresponsible.
  •unsound (noun)
  • decayed,
  • wildcat,
  • speculative,
  • corroded,
  • rotted,
  • high-risk,
  • tatterdemalion,
  • risky,
  • long.

• Other synonyms:

  •
  • crackers,
  • brainsick,
  • dicey,
  • Daffy,
  • touch-and-go,
  • bananas,
  • dotty,
  • fruity,
  • batty,
  • bonkers,
  • loco.
  •
  • ill-advised,
  • distraught,
  • screwy,
  • questionable,
  • cracked,
  • nutty,
  • maniacal,
  • bold,
  • non compos mentis,
  • inaccurate,
  • indiscreet,
  • gaga,
  • loony,
  • imprudent,
  • incorrect,
  • nuts,
  • wacky,
  • impolitic,
  • ill-considered,
  • buggy,
  • injudicious,
  • hazy,
  • crazy.
  •
  • fragile,
  • unsubstantial,
  • spurious,
  • disordered,
  • touched,
  • moonstruck,
  • untrue,
  • feeble.
  •
  • dodgy.
  •
  • delicate.
  •
  • off.
  •illogical
  • illegitimate.

Paraphrases for Unsound:

• Equivalence

  • Adjective
    improper, bad.

• Forward Entailment

  • Adjective
    sound.

• Independent

  • Adjective
    unfounded, inappropriate, unjustified, unjustifiable, undesirable, defective, wrong, groundless, imperfect, flimsy, precarious, questionable, dubious, fragile, weak, harmful, hazardous, unwarranted, inaccurate, unfair, deleterious, lame, pernicious, faulty, noxious.

• Other Related

  • Adjective
    unhealthy, unreasonable, unreliable, unwise, unsatisfactory, irrational, inadequate, flawed, misguided, erroneous, deficient, incorrect, shaky, inadvisable, incomplete, mistaken, ill-advised, poor.

Antonyms for Unsound:

• adj.

  • all
    sound.
  • not well; flimsy
    just, true, certain, accurate, balanced, strong, well, sane, secure, steady, stable, protected, right, safe, correct, valid, firm, rational, reasonable, perfect, honest, reliable, sure, healthy.
  • Other antonyms:
    reasoned, dependable, justified, able-bodied, wise, factual, exact, convincing, flourishing, good, well-founded, blooming, credible, validated, hardy, cured, sober, corroborated, impeccable, errorless, organized, better, conditioned, informed, recovering, tested, proper, plausible, letter-perfect, judicious, chipper, unneurotic, substantiated, compelling, enlightened, clear, rugged, logical, bouncing, rehabilitated, improved, commonsense, thriving, lusty, precise, satisfying, hale, mending, confirmed, fit, robust, wholesome, normal, faultless, proven, established, well-grounded, healthful, whole, lucid, flush, well-adjusted, cogent, tough, persuasive, hearty, flawless, well-conditioned, veracious, sensible, stalwart, ordered, demonstrated.

• Other antonyms:

  • n.
    goodness, short.