penetrability

Capacity for entry

Penetrability is the quality of being able to be penetrated—pierced, entered, or passed through.

The term appears in technical contexts: the penetrability of a membrane, of armor, of soil.

The penetrability of the fortress walls was tested by cannon fire.

Figuratively, it can describe how easily something yields to understanding or influence: the penetrability of his defenses.

vulnerability

defenseless

Without means to resist

assailable · breachable · exploitable · attackable · undefended · unfortified · unshielded · weak · fragile · compromised

permeability

porosity

Void space density

seepage · absorption · transmissivity · leakage · capillarity · infiltration · percolation · breathability · membrane · spongy

receptivity

amenable

Willing to comply

susceptible · absorbent · persuadable · open-minded · suggestible · influenceable · tractable · yielding · accepting

accessibility

approachable

Easy to engage with

unobstructed · enterable · passable · traversable · open · unbarred · unlocked · ingress · entry · admittance

transparency

clear

Without obstruction or fog

diaphanous · pellucid · limpid · unclouded · unobscured · visible · discernible · legible · intelligible · comprehensible

Categories
Opposites
physical permeation

penetrabilityimpenetrability

Resistance to penetration

imperviousness · impermeability · impassability · solidity · density

comprehensibility

penetrabilityimpenetrability

Resistance to penetration

inscrutability · incomprehensibility · opaqueness · unfathomability · inaccessibility

defensive vulnerability

penetrabilityimpregnability

Inability to be conquered

impenetrability · invulnerability · inviolability · fortification · security

Family

impenetrability

Familiarity
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