In a way that is not suitable, proper, or fitting for a particular situation or context.
From 'inappropriate' (in- not + appropriate suitable), plus '-ly' adverb suffix. Built from Latin 'appropriatus' (made one's own/suitable).
The word is interesting because appropriateness changes completely by context—wearing pajamas is inappropriate for a job interview but perfect for bedtime. Language itself is a system of appropriateness rules.
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