Its common uses include:
1. Describe the influence of some important or special experiences, events or feelings on people, such as unforgettable experiences, unforgettable love, unforgettable friendship and so on.
Unforgettable love
2. Describe some people or things that leave a very deep and indelible impression, such as unforgettable teachings, unforgettable images and so on.
3. Describe some things or people that are very exciting or shocking and unforgettable, such as unforgettable blows, unforgettable shocks and so on.
Example:
That earthquake was an unforgettable experience for me, which made me deeply realize the fragility and preciousness of life.
My parents' education gave me unforgettable inspiration and made me stronger and braver.
The teacher's teaching is still my unforgettable memory, which I will cherish in my heart forever.
An unforgettable shock.