Is it enormity or enormousness? Traditionally, only one of these words means "huge."
Traditionally, usage guides said that enormousness described something huge, and enormity described something overwhelmingly horrible. Yet, today, enormity is also regularly used to describe something of staggering hugeness. Some people call this an error and some people call it language change.
The Merriam-Webster Dictionary of English Usage says there is no basis for the distinction between the words, and they also note that the word enormousness has always been less popular than enormity. Nobody makes the “mistake” of using enormousness to describe something monstrously horrible; they only use enormity to describe something huge. People just seem to prefer the word enormity.
But to me, the real problem is that the muddled meanings can cause ambiguity. Consider this sentence:
The enormity of the landslide daunted the clean-up crew.
Was the problem huge or horrible? Who knows? You can’t tell from that sentence.
The Quick and Dirty Tip is to avoid ambiguity by avoiding the word enormity in sentences where the meaning could be either “huge” or “horrible.” Instead of saying “The enormity of the landslide daunted the clean-up crew,” be more specific and say something like “The devastation caused by the landslide daunted the clean-up crew,” or “The sheer size of the landslide daunted the clean-up crew.” That way, your meaning will be clear.
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