A time when conditions are right for the accomplishment of a crucial action; the opportune and decisive moment.(noun)
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Use "kairos" in a sentence
"The concept of kairos is a major component in all my novels thus far - love the way you have applied it to conventions, which I have not attended for several years now due to time constraints, mostly."
"In rhetoric kairos is a passing instant when an opening appears which must be driven through with force if success is to be achieved."
"Prof. Lunsford credits the students she studied with "kairos" - the ancient Greek term for the ability to say the right thing at the right time."