Synonyms for Impervious:

• adj.

  •dense (adjective)
  • impenetrable.
  •disobedient (adjective)
  • unruly.
  •durable (adjective)
  • stouter,
  • Diuturnal,
  • long-continued,
  • perduring,
  • persistent.
  •firm (adjective)
  • more congealed,
  • most congealed,
  • more compressed,
  • close grained,
  • non-porous,
  • most finegrained,
  • most fine grained,
  • in elastic,
  • most jelled,
  • more solidified,
  • more nonporous,
  • more closegrained,
  • fine grained,
  • more close-grained,
  • in-elastic,
  • un-yielding,
  • more close grained,
  • most nonporous,
  • most fine-grained,
  • more jelled,
  • un yielding,
  • more concrete,
  • non porous,
  • most close grained,
  • more finegrained,
  • most compressed,
  • finegrained,
  • most closegrained,
  • more fine-grained,
  • closegrained,
  • most close-grained,
  • more fine grained,
  • most solidified.
  •hermetic (adjective)
  • more shut,
  • more watertight,
  • most shut,
  • most watertight,
  • hermetic.
  •impenetrable (adjective)
  • in-violable,
  • most unpiercable,
  • most bulletproof,
  • more bulletproof,
  • more unpiercable,
  • in violable.
  •impermeable (adjective)
  • water-resistant,
  • leak-proof.
  •impossible (adjective)
  • unrealizable,
  • no-way,
  • unrecoverable,
  • uncorrectable,
  • hundred-to-one,
  • unachievable,
  • not a prayer,
  • unworkable,
  • irrealizable,
  • infeasible,
  • no-go,
  • out of question,
  • no way,
  • NOGO,
  • no-win,
  • Noway,
  • unobtainable,
  • contrary to reason,
  • no go,
  • Inexecutable,
  • hardly possible.
  •inaccessible (adjective)
  • unreachable,
  • ungettable,
  • far off,
  • not at hand,
  • Inapproachable,
  • unattainable,
  • faraway.
  •inapproachable (adjective)
  • out of way,
  • out the way,
  • out way,
  • in approachable,
  • in-approachable.
  •incompressible (adjective)
  • in compressible,
  • in-compressible.
  •indifferent (adjective)
  • stoical,
  • unsocial,
  • non-partisan,
  • unimpressed,
  • uncaring,
  • unaroused,
  • insensible.
  •indocile (adjective)
  • in-docile,
  • in docile,
  • un disciplined.
  •invulnerable (adjective)
  • immune,
  • unbeatable,
  • invulnerable,
  • indestructible,
  • invincible,
  • formidable.
  •safe (adjective)
  • safest,
  • unmolested,
  • Unthreatened,
  • unhurt,
  • uninjured,
  • SAFER,
  • free from danger,
  • buttoned up,
  • under lock and key,
  • out of danger,
  • safe and sound,
  • home-free,
  • in safety,
  • home free,
  • Out of harm's way,
  • under one's wing.
  •thick (adjective)
  • ropy,
  • jellied,
  • ropier,
  • clabbered,
  • syrupy,
  • curdled,
  • Caked,
  • crawling with,
  • GUNKY,
  • gelatinous,
  • Gummous,
  • vitrified,
  • gloppy,
  • like sardines,
  • ropiest.
  •tight (adjective)
  • skintight,
  • Padlocked,
  • proofer,
  • stopped up,
  • Slammed.
  •unaffected (adjective)
  • most easy going,
  • un ruffled,
  • un-influenced,
  • un affected,
  • more hard hearted,
  • more uninfluenced,
  • most uninfluenced,
  • most hard hearted,
  • most hard-hearted,
  • most unaltered,
  • un influenced,
  • un altered,
  • more easy-going,
  • un-excited,
  • hard boiled,
  • more easy going,
  • more unaltered,
  • un-stirred,
  • un-touched,
  • thick skinned,
  • un-ruffled,
  • laidback,
  • un stirred,
  • un-affected,
  • un-altered,
  • un touched,
  • thickskinned,
  • most unexcited,
  • un excited,
  • hard hearted,
  • more hard-hearted,
  • more unexcited.
  •unattainable (adjective)
  • un attainable,
  • un-attainable.
  •uncaring (adjective)
  • un caring,
  • un-caring.
  •unreachable (adjective)
  • un reachable,
  • un-reachable.
  •unrealizable (adjective)
  • un realizable,
  • un-realizable.
  •unruly (adjective)
  • in subordinate,
  • in-exorable,
  • un manageable,
  • in-temperate,
  • dis orderly,
  • un controllable,
  • in-subordinate,
  • un-governable,
  • out line,
  • un-controllable,
  • in-tractable,
  • in-corrigible,
  • dis-orderly,
  • in tractable,
  • in temperate,
  • out control,
  • in corrigible,
  • un-manageable.
  •unsusceptible (adjective)
  • un susceptible,
  • un-susceptible.
  •unworkable (adjective)
  • un workable,
  • un-workable.
  •waterproof (adjective)
  • more rainproof,
  • most rainproof.

• n.

  •
  • neutral,
  • emotionless,
  • unresponsive,
  • passive,
  • resist,
  • undemonstrative,
  • blank,
  • insusceptible,
  • unemotional,
  • controlled,
  • restrained.
  •greaseproof (noun)
  • greaseproof.
  •imperviable (noun)
  • imperviable.
  •impervious (noun)
  • mothproof,
  • runproof,
  • soundproof,
  • run-resistant,
  • resistant,
  • moth-resistant,
  • ladder-proof.

• Other synonyms:

  •
  • photosensitive,
  • solid,
  • water-soluble,
  • unsusceptible,
  • nonsentient,
  • impure,
  • soluble,
  • permeable,
  • porous,
  • uncut,
  • astringent,
  • stiff,
  • resistive,
  • pathless.
  •
  • volatile.
  •
  • harsh.
  •
  • proof.
  •Other relevant words:
  • incorrigible,
  • self-contradictory,
  • frigid,
  • stolid,
  • lost to,
  • heedless,
  • steely,
  • unsubmissive,
  • deaf,
  • tempered,
  • unaware,
  • standoffish,
  • unamenable,
  • unfeasible,
  • mac,
  • desperate,
  • insensate,
  • flameproof,
  • Innavigable,
  • fireproof,
  • positive,
  • compressed,
  • unpierced,
  • hard,
  • impregnable,
  • hardhearted,
  • pachydermatous,
  • fast,
  • obstinate,
  • rustproof,
  • uninterested,
  • bombproof,
  • protective,
  • untouched,
  • unsurmountable,
  • flinty,
  • sealed,
  • noiseproof,
  • hidebound,
  • burglarproof,
  • prim,
  • untrodden,
  • close-fitting,
  • Cold-hearted,
  • case-hardened,
  • rocklike,
  • rugged,
  • imperturbable,
  • humidity,
  • stony,
  • unaccessible,
  • obtuse,
  • callous,
  • strait-laced,
  • Untractable,
  • un-come-at-able,
  • inflexible,
  • raincoat,
  • unfelt,
  • hard-boiled,
  • aloof,
  • undiscoverable,
  • unprocurable,
  • crotchety,
  • foolproof,
  • unimpressionable,
  • inextricable,
  • unhearing,
  • cool,
  • unconcerned,
  • shedding,
  • inconsiderate,
  • thoughtless,
  • austere,
  • Prepossessed,
  • unreceptive,
  • Hermetical,
  • untrod,
  • apathetic,
  • unavailable,
  • defiant,
  • haughty,
  • leathery,
  • nonabsorbent,
  • anesthetic,
  • insurmountable,
  • Unpliable,
  • inured,
  • reserved,
  • unnavigable,
  • granite,
  • airtight,
  • intractable,
  • unmovable,
  • shatterproof,
  • toughened,
  • strong,
  • moisture,
  • prejudiced,
  • rainproof,
  • Impersuasible,
  • adamant,
  • hopeless,
  • unyielding,
  • opposed,
  • insuperable,
  • unstirred,
  • closed,
  • unpersuadable,
  • wooden,
  • thick-skinned,
  • compact,
  • insensible of,
  • infatuated,
  • caecal,
  • weatherproof,
  • impracticable,
  • unfeeling,
  • tough,
  • lukewarm,
  • impassive,
  • opaque,
  • Hard-mouthed,
  • dense,
  • remote,
  • dogmatic,
  • unsympathetic,
  • beyond control,
  • dull,
  • adiaphanous,
  • Imporous,
  • Wayless,
  • repellent,
  • unpassable,
  • unfriendly,
  • philistine,
  • averse,
  • impervious to,
  • hard-nosed,
  • hermetically sealed,
  • mackintosh,
  • cloth-eared,
  • colorfast,
  • insensitive,
  • inviolable,
  • inaccessible,
  • impassable,
  • Inexcitable,
  • forbidding,
  • oblivious,
  • bigoted,
  • obdurate,
  • incompatible,
  • Indurated,
  • Unpierceable,
  • numb,
  • unmoved,
  • submersible,
  • Impersuadable,
  • fixed,
  • Unswayable,
  • closable,
  • shellproof,
  • rigid,
  • fire-resisting,
  • imperforate,
  • out of reach,
  • Ballproof,
  • close,
  • snug,
  • mack,
  • hardened,
  • unaffected by,
  • stiff-backed,
  • leakproof,
  • arbitrary,
  • unheedful,
  • inert,
  • Casehardened,
  • petrified,
  • dead,
  • acid-fast,
  • concrete,
  • Invious,
  • unapproachable,
  • Uncomeatable,
  • secure,
  • closed to,
  • Steeled,
  • dispassionate,
  • nontranslucent,
  • Against,
  • secured,
  • dampness,
  • solidified,
  • calloused,
  • condensed,
  • cold,
  • closed forever to.

Paraphrases for Impervious:

• Equivalence

  • Adjective
    impermeable, resistant.

• Independent

  • Adjective
    leakproof, leak-proof, watertight, airtight, irrelevant, weatherproof, immaterial, sealed, uncaring.

• Other Related

  • Adjective
    insensitive, indifferent, waterproof, unresponsive, immune, water-resistant, unmoved, callous, oblivious, numb, heartless.

Antonyms for Impervious:

• adj.

  • unable to be penetrated
    penetrable, exposed, responsive, susceptible, open, sensitive, moved, vulnerable, affected.
  • Other antonyms:
    giving, absorbent, negotiable, pliable, squishy, elastic, flexible, unsealed, yielding, leaky, malleable, bendable, soft.