infelicity
noun
[ ɪnfɪˈlɪsɪti ]
• a thing that is inappropriate, especially a remark or expression.
• "she winced at their infelicities and at the clumsy way they talked"
• unhappiness; misfortune.
• "the infelicity which accompanies some people through life"
Origin:
late Middle English (in the sense ‘unhappiness’): from Latin infelicitas, from infelix, infelic- ‘unhappy’, from in- ‘not’ + felix ‘happy’.