“行动不自由”可以翻译为 "lack of freedom of movement" 或 "restricted freedom of movement"。
"Lack of freedom of movement" 强调缺乏行动自由的状态。
"Restricted freedom of movement" 则突出行动自由受到限制或约束。
根据具体语境，两者均可使用。例如：
Due to the lockdown, many people experienced a lack of freedom of movement.（由于封锁，许多人的行动受到了限制。）
The prisoners' freedom of movement was severely restricted.（囚犯们的行动自由受到了严格限制。）