undecryptable

As a noun terms

is .

As an adjective undecryptable is

that cannot be decrypted.

Uncrackable is a synonym of undecryptable.

As adjectives the difference between uncrackable and undecryptable

is that uncrackable is (of a code) that cannot be cracked; unbreakable while undecryptable is that cannot be decrypted.

Undecryptable is a synonym of unbreakable.

As adjectives the difference between unbreakable and undecryptable

is that unbreakable is difficult to break and therefore able to withstand rough usage while undecryptable is that cannot be decrypted.

As a noun unbreakable

is something that cannot be broken.

As a verb decrypt

is to convert an encrypted or coded text or message into plain text.

As a noun decrypt

is a decoded communication.

As an adjective undecryptable is

that cannot be decrypted.