<em>"a propitious moment for decision or action," </em>better stated as "opportunity."
<h2>Explanation:</h2>
In Grecian times, there were two words for time: chronos and kairos. The former refers to sequential time, while the latter, the one we are concerning ourselves with, signifies a proper or <em>opportune</em> time for action. Given this explanation, <em>kairos </em>can be defined as opportunity.