More precise classification: compound adjective formed from the past participle of the verb 'lock in'.
Translations
The locked-in interest rate will not change for the next five years.
Фиксированная процентная ставка не изменится в течение следующих пяти лет.
The locked-in room was filled with old furniture.
Запертая комната была заполнена старой мебелью.
Definitions
Fixed or unable to be changed. The contract has a locked-in interest rate for the next five years.
Fully engaged or focused on a task or activity. The athlete was locked-in during the final minutes of the game, ensuring their team's victory.
Affected by locked-in syndrome, being conscious but unable to move or speak due to paralysis. The locked-in patient communicated through subtle eye movements.