undercover

Impenetrable is a related term of undercover.

As adjectives the difference between impenetrable and undercover

is that impenetrable is impenetrable while undercover is performed or happening in secret.

As a noun undercover is

a person who works.

As a verb surface

is .

As an adjective undercover is

performed or happening in secret.

As a noun undercover is

a person who works.

As adjectives the difference between undercover and underhanded

is that undercover is performed or happening in secret while underhanded is done by moving the hand (and arm) from below.

As a noun undercover

is a person who works undercover.

Undercover is a related term of supernatural.

As adjectives the difference between undercover and supernatural

is that undercover is performed or happening in secret while supernatural is above nature; that which is beyond or added to nature, often so considered because it is given by a deity or some force beyond that which humans are born with in roman catholic theology, is considered to be a supernatural addition to human nature.

As nouns the difference between undercover and supernatural

is that undercover is a person who works while supernatural is (countable) a supernatural being.

As adjectives the difference between undercover and private

is that undercover is performed or happening in secret while private is belonging to, concerning, or accessible only to an individual person or a specific group.

As nouns the difference between undercover and private

is that undercover is a person who works undercover while private is the lowest rank of the army.

As nouns the difference between undercover and stealth

is that undercover is a person who works while stealth is (uncountable) the attribute or characteristic of acting in secrecy, or in such a way that the actions are unnoticed or difficult to detect by others.

As an adjective undercover

is performed or happening in secret.

As an adverb surreptitiously

is in a surreptitious manner; stealthily, furtively, secretly.

As an adjective undercover is

performed or happening in secret.

As a noun undercover is

a person who works.

Undercover is a related term of concealed.

As an adjective undercover

is performed or happening in secret.

As a noun undercover

is a person who works.

As a verb concealed is

(conceal).

Undercover is a related term of crafty.

As adjectives the difference between undercover and crafty

is that undercover is performed or happening in secret while crafty is relating to, or characterized by, craft or skill; dexterous.

As a noun undercover

is a person who works.

As adjectives the difference between undercover and pernicious

is that undercover is performed or happening in secret while pernicious is causing much harm in a subtle way.

As a noun undercover

is a person who works undercover.