Hello

Would you please tell me if crucial and critical are interchangeable in the sentences below and generally interchangeable in all contexts of course both in the sense of " of the greatest importance of the greatest importance" :

-Price will be a crucial factor in the success of this new product.
-The motif of betrayal and loss is crucial in all these stories.
-The President's support is critical ( to this project).

Thanks a lot
Original Post
crucial or critical?

There is no real difference in meaning between these words and they can be used with the same range of nouns and structures. However, there is sometimes a slight difference in context.

Critical is often used in technical matters of business or science; crucial is often used to talk about matters that may cause anxiety or other emotions.

From Oxford Learner’s Thesaurus © Oxford University Press, 2008.
From the best dictionary on synonyms (I'd encourage you go consider joining it, taking into consideration your questions):

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ACUTE, CRITICAL, CRUCIAL:

CRITICAL may describe an approach to a crisis or turning point and may imply an imminent outcome or resolution <the war has reached a new critical phase ... we have moved into active and continuing battle -- F.D.Roosevelt> <the critical lack of rubber in the last war was finally beaten by the development of synthetic rubber plants capable of turning out 1,000,000 tons a year -- Collier's Year Book>

CRUCIAL applies to an actual crisis situation, often one viewed with fear, worry, or suspense, and implies a speedily ensuing decisive or definitive outcome <a continuous evolution, punctuated by the sudden flaming or flowering of a crucial moment now and then -- J.L.Lowes> <the next few months are crucial. What we do now will affect our American way of life for decades to come -- H.S.Truman>

Webster's Third New International Dictionary, Unabridged.
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Hello again

I'd like to refresh my question with two questions:
1- Could you tell me if it is possible to use crucial instead of critical in the following sentences?
- A critical element of the plan. - A second income that is critical to the family's well-being. - Courage, honesty, and firmness are critical qualities that no politician should lack. - A critical ingredient.

2- Would you please explain to me whether it is OK to replace critical with crucial or vice versa in the above instances JerryS provided ?

Thank you very much.
Thank you for your reply JerryS.

Sorry for my mistake,what I meant to say was the QUOTATIONS in the excerpt from the unabridged Webster you posted here.
Is it OK to replace critical with crucial or vice versa without any change in the meaning in those sentences(quotations) from the excerpt from the dictionary you posted ?

Best Wishes.
quote:
Is it OK to replace critical with crucial or vice versa without any change in the meaning in those sentences(quotations) from the excerpt from the dictionary you posted ?


Not without any change, Majid. There would be a slight difference, and as Jerry said, it depends on what you want to say.

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