Not admitting of penetration or passage into or through.

Roget 664: safe, secure, sure; in safety, in security; on the safe side; under the shield of, under the shade of, under the wing of, under the shadow of one's wing; under cover, under lock and key; out of danger, out of the woods, out of the meshes, out of harm's way; unharmed, unscathed; on sure ground, at anchor, high and dry, above water; unthreatened^†, unmolested; protected etc. v.; cavendo tutus [Lat.]; panoplied etc. (defended) 717^†.    snug, seaworthy; weatherproof, waterproof, fireproof.    defensible, tenable, proof against, invulnerable; unassailable, unattackable, impenetrable; impregnable, imperdible^†; inexpugnable; Achillean^†.    safe and sound etc. (preserved) 670; scathless etc. (perfect) 650; unhazarded^†; not dangerous etc. 665.    unthreatening, harmless; friendly (cooperative) 709.    protecting, protective etc. v.; guardian, tutelary; preservative etc. 670; trustworthy etc. 939.    ... meer laten zien

Roget 526: latent; lurking etc. v.; secret etc. 528; occult; implied etc. v.; dormant; abeyant.    unapparent, unknown, unseen etc. 441; in the background; invisible etc. 447; indiscoverable^†, dark; impenetrable etc. (unintelligible) 519; unspied^†, unsuspected.    unsaid, unwritten, unpublished, unbreathed^†, untalked of^†, untold etc. 527, unsung, unexposed, unproclaimed^†, undisclosed etc. 529, unexpressed; not expressed, tacit.    undeveloped, solved, unexplained, untraced^†, undiscovered etc. 480.1, untracked, unexplored, uninvented^†.    indirect, crooked, inferential; by inference, by implication; implicit; constructive; allusive, covert, muffled; steganographic^†; understood, underhand, underground; delitescent^†, concealed etc. 528.    ... meer laten zien

Roget 261: closed etc. v.; shut, operculated^†; unopened.    unpierced^†, imporous^†, caecal [Med.]; closable; imperforate, impervious, impermeable; impenetrable; impassable, unpassable^†; invious^†; pathless, wayless^†; untrodden, untrod.    unventilated; air tight, water tight; hermetically sealed; tight, snug.    ... meer laten zien

Permitting little if any light to pass through because of denseness of matter:
— Impenetrable gloom.

synoniemen: dense, heavy.

Roget 519: unintelligible, unaccountable, undecipherable, undiscoverable, unknowable, unfathomable; incognizable^†, inexplicable, inscrutable; inapprehensible^†, incomprehensible; insolvable^†, insoluble; impenetrable.    illegible, as Greek to one, unexplained, paradoxical; enigmatic, enigmatical, puzzling (secret) 533; indecipherable.    obscure, dark, muddy, clear as mud, seen through a mist, dim, nebulous, shrouded in mystery; opaque, dense; undiscernible etc. (invisible) 447^†; misty etc. (opaque) 426; hidden etc. 528; latent etc. 526.    indefinite, garbled etc. (indistinct) 447; perplexed etc. (confused) 59; undetermined, vague, loose, ambiguous; mysterious; mystic, mystical; acroamatic^†, acroamatical^†; metempirical; transcendental; occult, recondite, abstruse, crabbed.    inconceivable, inconceptible^†; searchless^†; above comprehension, beyond comprehension, past comprehension; beyond one's depth; unconceived.    inexpressible, undefinable, incommunicable.    unpredictable, unforeseeable.    ... meer laten zien

Roget 321: dense, solid; solidified etc. v.; caseous; pukka^†; coherent, cohesive etc. 46; compact, close, serried, thickset; substantial, massive, lumpish^†; impenetrable, impermeable, nonporous, imporous^†; incompressible; constipated; concrete etc. (hard) 323; knotted, knotty; gnarled; crystalline, crystallizable; thick, grumous^†, stuffy.    undissolved, unmelted^†, unliquefied^†, unthawed^†.    indivisible, indiscerptible^†, infrangible^†, indissolvable^†, indissoluble, insoluble, infusible.    ... meer laten zien

Impossible to understand.

Pools: nieprzenikniony