surreptitious

Masked is a related term of surreptitious.

As adjectives the difference between masked and surreptitious

is that masked is wearing a mask or masks; characterized by masks; concealed; hidden while surreptitious is stealth]]y, furtive, [[hidden|well hidden, covert (especially movements).

As a verb masked

is (mask).

Sphinxlike is a related term of surreptitious.

As adjectives the difference between sphinxlike and surreptitious

is that sphinxlike is like a sphinx, or like that of a sphinx while surreptitious is stealth]]y, furtive, [[hidden|well hidden, covert (especially movements).

Surreptitious is a related term of undercover.

As adjectives the difference between surreptitious and undercover

is that surreptitious is stealth]]y, furtive, [[hidden|well hidden, covert (especially movements) while undercover is performed or happening in secret.

As a noun undercover is

a person who works.

Unrevealed is a related term of surreptitious.

As adjectives the difference between unrevealed and surreptitious

is that unrevealed is not revealed; hidden; secret while surreptitious is stealth]]y, furtive, [[hidden|well hidden, covert (especially movements).

As adjectives the difference between surreptitious and pernicious

is that surreptitious is stealthy, furtive, well hidden, covert (especially movements) while pernicious is causing much harm in a subtle way.

Surreptitious is a related term of shady.

As adjectives the difference between surreptitious and shady

is that surreptitious is stealth]]y, furtive, [[hidden|well hidden, covert (especially movements) while shady is abounding in shades.

Surreptitious is a related term of elusive.

As adjectives the difference between surreptitious and elusive

is that surreptitious is stealth]]y, furtive, [[hidden|well hidden, covert (especially movements) while elusive is .

As adjectives the difference between surreptitious and private

is that surreptitious is stealth]]y, furtive, [[hidden|well hidden, covert (especially movements) while private is belonging to, concerning, or accessible only to an individual person or a specific group.

As a noun private is

the lowest rank of the army.

Surreptitious is a related term of collusive.

As adjectives the difference between surreptitious and collusive

is that surreptitious is stealth]]y, furtive, [[hidden|well hidden, covert (especially movements) while collusive is secretly acting together for a fraudulent or illegal purpose.

Surreptitious is a related term of undecipherable.

As adjectives the difference between surreptitious and undecipherable

is that surreptitious is stealth]]y, furtive, [[hidden|well hidden, covert (especially movements) while undecipherable is not easily deciphered; difficult to read.