inactive
inactive — 形容詞
1. describes a person or animal that is not moving, not doing much, or lacking the
不活躍
不活動或缺乏活力的狀態（人或動物）
describes a person or animal that is not moving, not doing much, or lacking the energy to be physically or mentally active — for example, someone who sits still for hours without exercising.
The doctor told Romi that her lifestyle was too inactive and she needed more exercise.
醫生告訴 Romi，她的生活太不活躍了，需要多運動。
too + adjective for excessive degree
During winter, the bears become inactive and sleep for many weeks.
冬天時，熊會變得不太活躍，並且睡好幾個星期。
become + adjective for change of state
Quan felt inactive after sitting at his desk for eight hours straight.
Quan 在辦公桌前連續坐了八個小時後，覺得很不活躍。
An inactive child may struggle in class if they never run or play outside.
一個不活躍的孩子如果從不跑或出去玩，在課堂上會很吃力。
Tara's cat is so inactive that it stays on the same sofa cushion all day.
Tara 的貓非常不活躍，整天都待在同一個沙發坐墊上。
用法筆記
Often describes a lifestyle, a physical state, or an animal's seasonal behaviour. Frequently appears after 'too,' 'become,' 'feel,' or 'remain.' Contrast with sense 2 — this sense applies to living beings, not objects.
常見錯誤
❌ 'My phone is inactive because the battery is dead.' (meaning not working) — This describes an object (sense 2). For a phone that is not working, say 'dead' or 'not working'; 'inactive' for objects means deliberately not in use, not broken.
2. describes equipment, machinery, a system, or an account that is not being used a
閒置
不在使用中的（設備、帳戶或系統）
describes equipment, machinery, a system, or an account that is not being used at the present time or is deliberately turned off and not running.
The factory kept several machines inactive because there were no orders to fill.
工廠讓好幾台機器保持閒置，因為沒有訂單需要生產。
keep + object + adjective for maintaining a state
Gabriel found an old, inactive phone in the drawer that still had battery power.
Gabriel 在抽屜裡找到一支舊的閒置手機，裡面居然還有電。
If an account remains inactive for two years, the bank will close it.
如果帳戶閒置超過兩年，銀行就會將它關閉。
The fire extinguisher had been inactive for so long that it needed to be replaced.
那支滅火器已經閒置太久，需要更換了。
Dylan turned off the inactive computer monitors to save electricity at night.
Dylan 關掉了閒置的電腦螢幕，以便在夜間節省電力。
- active
direct opposite across all domains
- operational
specifically for machinery or systems in working order
用法筆記
Subject is usually an object, device, system, or financial account. Contrast with sense 1 — this sense describes things that have been purposefully or habitually left unused, not things that are broken or malfunctioning.
常見錯誤
3. describes a soldier or officer who is not currently serving in active combat or
非現役
不在作戰或勤務狀態的（軍人）
describes a soldier or officer who is not currently serving in active combat or on regular military duty and is not required to report for daily service.
After his injury, Sergeant Faisal was placed on inactive status for six months.
Faisal 中士受傷後，被列為非現役狀態六個月。
inactive status / inactive duty — military collocation
The base houses about two hundred inactive soldiers who are awaiting new assignments.
這個基地容納了約兩百名正在等待新任務的非現役士兵。
Nala's father was an inactive reservist who only trained one weekend per month.
Nala 的父親是一名非現役後備軍人，每月只訓練一個週末。
Inactive personnel are not required to wear uniforms unless they are called back to duty.
非現役人員無需穿著制服，除非被召回執勤。
The army transferred Corporal Sayaka to an inactive unit while she finished her degree.
軍隊將 Sayaka 下士調到一個非現役單位，讓她先完成學業。
- non-active
broader — can apply outside military contexts, though less common
- off-duty
not a synonym — 'off-duty' refers to a temporary break, not a formal status
- active
specifically 'active duty' in military usage
用法筆記
Restricted to military contexts. Often appears in fixed phrases: 'inactive status,' 'inactive duty,' 'inactive reserve.' The opposite term is 'active duty.' Unlike senses 1 and 2, this sense does not describe everyday life or objects.