Word · CEFR C1 · Frequency #11676
slack
松弛的；不紧的；松的
Loose; not tight or firmly fixed.
- 1.
Lax; not tense; not firmly extended.
松弛的；不紧的
- 2.
Weak; not holding fast.
弱的；不牢固的
- 3.
Moderate in some capacity.
适度的
- 4.
Lacking diligence or care; not earnest or eager.
缺乏勤奋或关心；不认真或不热心
- 5.
Not active or busy, successful, or violent.
不活跃或不忙碌,不成功或不猛烈
- 6.
Excess; surplus to requirements.
过剩；超出需求
- 7.
Lax.
松弛的
懈怠的；马虎的；不认真的；不景气的；清淡的；清闲的；多余的；剩余的；富余的；适度的；温和的；不剧烈的；松弛的；不紧的
In use
A slack rope won't keep the boat tied to the dock.
The cable went slack after the anchor moved.
The waistband of these trousers is slack, so I need to wear a belt.
Connections
Collocations
- slack rope
- 松弛的绳索
- He pulled the slack rope tight before mooring the boat.他在停船前把松弛的绳子拉紧了。
- slack season
- 淡季；萧条期
- Many shops close during the slack season.许多商店在淡季关门。
- slack demand
- 需求疲软；需求量不足
- The factory reduced production because of slack demand.由于需求疲软，工厂减少了产量。
- slack attitude
- 懈怠的态度
- Her slack attitude toward homework worried the teacher.她对作业懈怠的态度让老师担心。
- slack muscles
- 松弛的肌肉
- After months in bed, his slack muscles ached at the slightest exercise.卧床几个月后，他松弛的肌肉稍微一活动就酸痛。
Idioms & figurative uses
Learner notes
Memory Tip
slack 拆成 s + lack，缺少(lack)绷紧的劲，所以人松懈、绳子松弛。
Context & Register
语域：mixed 常见场景：physical tautness (rope, wire)、business/economy (sales, demand)、work attitude (lazy, negligent) 形容词 slack 的语域随义项而变化：描述“松弛、不紧”（如绳索）或“不景气”（如生意清淡）时比较中性，正式与非正式场合都常见；指人“懒散、懈怠”时多用于口语或非正式语境。具体正式程度需看搭配，没有一种固定语域，故标注为 mixed。
Pronunciation & Spelling
All six words end in /-æk/ and genuinely rhyme with slack. They share the spelling chunk -ack. Be careful with similar-looking words that do not rhyme: slake /sleɪk/ (long a) and slick /slɪk/ (short i).
Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY, WORDNET.