clandestine

Inscrutable is a related term of clandestine.

As adjectives the difference between inscrutable and clandestine

is that inscrutable is difficult or impossible to comprehend, fathom or interpret while clandestine is done or kept in secret, sometimes to conceal an illicit or improper purpose.

As a noun inscrutable

is one who or that which is inscrutable; a person, etc that cannot be comprehended.

As adjectives the difference between clandestine and clairvoyant

is that clandestine is done or kept in secret, sometimes to conceal an illicit or improper purpose while clairvoyant is of or relating to clairvoyance.

As a noun clairvoyant is

a person able to see things that cannot be perceived by the normal senses.

As adjectives the difference between illegal and clandestine

is that illegal is illegal; not permitted by law while clandestine is done or kept in secret, sometimes to conceal an illicit or improper purpose.

As a noun collusion

is a secret agreement for an illegal purpose; conspiracy.

As an adjective clandestine is

done or kept in secret, sometimes to conceal an illicit or improper purpose.

As an adjective clandestine

is done or kept in secret, sometimes to conceal an illicit or improper purpose.

As a verb dissemble is

to disguise or conceal something.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective clandestine is

done or kept in secret, sometimes to conceal an illicit or improper purpose.

As an adjective clandestine

is done or kept in secret, sometimes to conceal an illicit or improper purpose.

As a noun convert is

a person who has converted to his or her religion.

As a verb convert is

(lb) to transform or change (something) into another form, substance, state, or product.

As adjectives the difference between clandestine and mad

is that clandestine is done or kept in secret, sometimes to conceal an illicit or improper purpose while mad is insane; crazy, mentally deranged.

As an adverb mad is

intensifier; to a large degree; extremely; exceedingly; very; unbelievably.

As a verb mad is

to madden, to anger, to frustrate.

As an acronym MAD is

mutually assured destruction.

As adjectives the difference between incognito and clandestine

is that incognito is while clandestine is done or kept in secret, sometimes to conceal an illicit or improper purpose.

As an adjective clandestine

is done or kept in secret, sometimes to conceal an illicit or improper purpose.

As a noun stealth is

the attribute or characteristic of acting in secrecy, or in such a way that the actions are unnoticed or difficult to detect by others.