Definitions

1. noun

relating to a happy and peaceful time in the past, especially one’s childhood, or a time of great happiness and security.

“Her halcyonic memories of summers spent by the sea were a balm to her soul.”

2. adjective

happy and peaceful, especially in a way that seems impossible to experience now, or extremely pleasant.

“The halcyonic days of old Hollywood are remembered fondly by film enthusiasts.”