The quality or state of being extremely tedious, monotonous, and depressing.
Formed from 'drearisome' + '-ness' (Old English suffix creating abstract nouns). The '-ness' suffix converts adjectives into countable states or qualities, common since Old English times.
This noun form is so rare it barely exists in modern texts, but the pattern of '-ness' being added to almost any adjective is one of English's most productive word-building rules—we use it thousands of times daily.
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