inexplicable

Inexpressive is a related term of inexplicable.

As adjectives the difference between inexpressive and inexplicable

is that inexpressive is lacking expression or emotion while inexplicable is impossible to explain; not easily accounted for.

Clandestine is a related term of inexplicable.

As adjectives the difference between clandestine and inexplicable

is that clandestine is done or kept in secret, sometimes to conceal an illicit or improper purpose while inexplicable is impossible to explain; not easily accounted for.

As adjectives the difference between inexpressible and inexplicable

is that inexpressible is unable to be expressed while inexplicable is impossible to explain; not easily accounted for.

Inexplicable is a synonym of unsolvable.

As adjectives the difference between inexplicable and unsolvable

is that inexplicable is impossible to explain; not easily accounted for while unsolvable is not solvable.

As adjectives the difference between bizarre and inexplicable

is that bizarre is strangely unconventional in style or appearance while inexplicable is impossible to explain; not easily accounted for.

As adjectives the difference between tepid and inexplicable

is that tepid is lukewarm; neither warm nor cool while inexplicable is impossible to explain; not easily accounted for.

As adjectives the difference between indescribable and inexplicable

is that indescribable is impossible, or very difficult to describe while inexplicable is impossible to explain; not easily accounted for.

As adjectives the difference between inexplicable and equivocal

is that inexplicable is impossible to explain; not easily accounted for while equivocal is having two or more equally applicable meanings; capable of double or multiple interpretation; ambiguous; uncertain.

As a noun equivocal is

a word or expression capable of different meanings; an ambiguous term; an equivoque.

As adjectives the difference between inexplicable and unutterable

is that inexplicable is impossible to explain; not easily accounted for while unutterable is not utterable; incapable of being spoken or voiced; inexpressible; ineffable; unspeakable.

As adjectives the difference between inexplicable and unknown

is that inexplicable is impossible to explain; not easily accounted for while unknown is not known; unidentified; not well known.

As a noun unknown is

(algebra) a variable (usually x'', ''y'' or ''z ) whose value is to be found.