The quality or condition of being appropriate(noun)
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Use "appropriateness" in a sentence
"Mr. Mitra said while "there are no immediate or egregious credit concerns, we are looking for policy signals and supporting actions that will better assure us about medium-term appropriateness of the policy framework and an ability to also meet unanticipated shocks.""
"(This, with grim appropriateness, is about the only place in the World Showcase where you can't find a meal.)"
"This goes with my rant about appropriateness, which is something along the lines of-I don't care how cute it is, if it's the wrong time or place ya look silly."