impenetrable as an adjective: - 1
- 2
- 3
impenetrable
adjective
1 impenetrable
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.
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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unpublished,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.
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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.
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2 impenetrable
Permitting little if any light to pass through because of denseness of matter:
— Impenetrable gloom.
synonyms: 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.
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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.
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3 impenetrable
Impossible to understand.
Polish: nieprzenikniony
Moby thesaurus: Greek to one, ambiguous, arcane, beyond reach, beyond understanding, cabalistic, close, close-knit, close-textured, close-woven, closed forever to, closed to, compact, compacted, compressed, concentrated, concrete, condensed, congested, consolidated, crammed, crammed full, crowded, dense, exuberant, firm, flourishing, gluey, gross, hard, heavy, holeproof, impassable, impermeable, impervious, impregnable, inaccessible, inarticulate, incognizable, incoherent, incomprehensible, incontestable, indomitable, inexpugnable, inscrutable, insuperable, invincible, inviolable, invulnerable, irresistible, jam-packed, jammed, jungled, jungly, lost to, lush, luxuriant, massive, mystic, nonporous, nonpuncturable, numinous, out of reach, overgrown, overpowering, overrun, overwhelming, packed, past comprehension, punctureproof, rambling, rank, resistless, riotous, serried, solid, substantial, thick, thick-growing, thickset, un-come-at-able, unaccessible, unaccountable, unapproachable, unassailable, unattainable, unavailable, unbeatable, unconnected, unconquerable, undiscoverable, unfathomable, ungettable, ungraspable, unguessed, unintelligible, unknowable, unobtainable, unpassable, unperforable, unpierceable, unprocurable, unreachable, unsearchable, unsecurable, unsubduable, unsurmountable, unweeded, unyielding, viscid, viscose, viscous, weed-choked, weed-ridden, weedy ... show more.
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