Part of speech:
The definition of impermeable is not able to be broken through, or not allowing fluids to pass through.
Incapable of being penetrated:
Closely packed, i.e. packing much in a small space.
Not intelligible; that cannot be understood; incomprehensible
The definition of inscrutable is someone or something that is hard to figure out, understand or interpret.
Marked by or indicating the tone and resiliency of healthy tissue:
That cannot be passed, crossed, or traveled over
(Informal) Very friendly; intimate:
Not readily noticed or seen; inconspicuous:
Not willing to change one's opinion, purpose, or principles; unyielding.
Impenetrable by bullets.
Using or based on data that are readily quantified or verified:
Of, relating to, or being a religious mystery:
That can be penetrated
Full of pores, through which fluids, air, or light may pass
Not dense or concentrated; sparse:
Gentle in action or motion; easy.
Capable of being permeated or penetrated, especially by liquids or gases:
Readily comprehended or understood; intelligible.
Capable of being understood:
Not comprehensible; that cannot be understood; obscure or unintelligible
Incapable of being grasped by the intellect or understanding
Not easily borne; oppressive:
Not hollowed out:
Find another word for impenetrable. In this page you can discover 41 synonyms, antonyms, idiomatic expressions, and related words for impenetrable, like: impermeable, impervious, compact, unintelligible, inscrutable, unfathomable, firm, impassable, thick, obscure and adamant.