"Unforgettable" is formed by adding the prefix "un-" to the word "forgettable," which itself is derived from "forget." The prefix "un-" means "not" or "opposite of," so "unforgettable" means "not forgettable."
"Unforgettable" is formed by adding the prefix "un-" to the word "forgettable," which itself is derived from "forget." The prefix "un-" means "not" or "opposite of," so "unforgettable" means "not forgettable."