As a noun daughter

is one’s female child.

As an adjective daughterless is

without a daughter.

As a verb son

is to be (to exist).

As an adjective sonless is

without a son.

As a noun cousin

is cousin.

As an adjective cousinless is

without a cousin.

As a noun delete

is a key that may be pressed to delete something (including text or files) from a computer.

As an adjective undeletable is

(computing) that cannot be deleted; indelible.

As adjectives the difference between indelible and undeletable

is that indelible is having the quality of being difficult to delete, remove, wash away, blot out, or efface while undeletable is that cannot be deleted; indelible.

As a verb undelete

is to recover (a file, record, etc.) from a deleted state.

As an adjective undeletable is

that cannot be deleted; indelible.

Unerasable is a derived term of erase.

As a verb erase

is to remove markings or information.

As an adjective unerasable is

that cannot be erased; indelible.

As a noun transformation

is the act of transforming or the state of being transformed.

As an interjection kerpow is

a powerful sound of impact or transformation; pow, wham.

As interjections the difference between pow and kerpow

is that pow is represents the sound of a violent impact, such as a punch while kerpow is a powerful sound of impact or transformation; pow, wham.

As a noun pow

is the sound of a violent impact or pow can be (scotland|ireland|northern england).

As a noun wham

is a forceful blow.

As a verb wham

is to strike or smash (into) something with great force or impact.

As an interjection kerpow is

a powerful sound of impact or transformation; pow, wham.