What does "unforgettable" mean?

Very difficult or impossible to forget.

What is a synonym for "unforgettable"?

Common synonyms include: celebrated, conspicuous, distinguished, eminent, esteemed, estimable.

Pronounced //ˌʌnfə(ɹ)ˈɡɛtəbəl//.

/ˌʌnfə(ɹ)ˈɡɛtəbəl/ adj

adj ·Uncommon ·Advanced level

Adjective

1
Very difficult or impossible to forget.
"The things he subjected me to were horrible and unforgettable."

Adjective

"This is the unforgettable place where we met each other for the first time."

From un- + forget + -able or un- + forgettable.