weak Definition in the Cambridge English Dictionary
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Definition of “weak” - English Dictionary

Definition of "weak" - American English Dictionary

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weakadjective [-er/-est only]

 us   /wik/

weak adjective [-er/-est only] (NOT STRONG)

lackingstrength or ​energy, or ​likely to ​stopworking or ​break: After having been so ​sick, it’s not ​surprising you still ​feel weak. That ​oldchair is very weak and ​needsgluing. A ​drink that is weak ​lacksflavor: The ​coffee was weak and ​tasteless. A weak ​link is the ​part of something that is most ​likely to ​break: This ​year, the team’s only weak ​link is that third baseman.

weak adjective [-er/-est only] (BELOW STANDARD)

below ​standard; not good enough: He was always weak in ​languages but ​strong in ​science.
(Definition of weak from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definition of "weak" - British English Dictionary

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weakadjective

uk   us   /wiːk/

weak adjective (NOT STRONG)

B1 not ​physicallystrong: It's not ​surprising you ​feel weak if you haven't ​eatenproperly for ​days. The ​electromagneticfieldstrengthbecomes weaker as you ​movefurther away from high ​voltagecables. not ​strong in ​character, so that you are not ​able to make ​decisions or to ​persuade or ​lead other ​people: He was a weak ​kingsurrounded by ​corruptadvisers. A weak ​argument or ​excuse is one that is not ​likely to be ​accepted or ​believed: Any ​evidence that ​exists to ​support the ​hypothesis is ​fairly weak. He gave the weakest of ​excuses when ​asked why he was late.B2 A weak ​drinkcontains a lot of ​watercompared to ​its other ​contents, so that it does not have a ​strongflavour: I can't ​stand weak ​coffee. specialized chemistry A weak acid, alkali, or ​chemical base does not ​produce many ions (= ​atoms with an ​electricalcharge) when it is ​dissolved in ​water.
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weak adjective (NOT GOOD)

B1 not good enough, ​especially in ​ability, ​skill, or ​quality: He was always weak at/inlanguages but ​strong in ​science. Our ​quizteam is a ​bit weak onsport. In the end I ​think the ​film was ​spoilt by a weak ​storyline.

weak adjective (CHIN)

usually disapproving A weak ​chin is ​small and does not ​stick out from the ​face.
weakly
adverb uk   us   /-li/
"Please, get me some ​water," he said weakly.
(Definition of weak from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)

Definition of "weak" - Business English Dictionary

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weakadjective

uk   us   /wiːk/
ECONOMICS, FINANCE too ​low or not powerful enough to be ​successful or ​effective: weak growth/market share/results There was unexpectedly weak ​growth in ​corporateoutput in May. weak performance/position Investors are already hesitant to ​commit because of the company's weak ​performance.weak demand/spending Consumer ​spending has been weak.continue/remain weak Investment ​banks continued weak after ​lowtradingvolumes in the past few weeks.
STOCK MARKET, FINANCE if a ​market, ​currency, ​investment, etc. is weak, it is ​falling or at a ​lowlevel and unlikely to ​rise: weak currency/dollar/euro The weak ​dollar is a huge ​help to the ​profitability of the ​companies. weak ​investments/​markets/​prices Swiss ​sharesended a ​quietsessionlower as weak ​bondsweighed on the ​market.
(Definition of weak from the Cambridge Business English Dictionary © Cambridge University Press)
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