dissatisfy
🇺🇸
/dɪsˈsætɪsˌfaɪ/
🇬🇧
/dɪs'sætɪsfaɪ/
To make someone unhappy or not pleased with something.
The food was not good, and it dissatisfied the guests.
To not meet someone's expectations or needs.
The product did not work as expected, which dissatisfied the user.