Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
severeness is a noun meaning "used of the degree of something undesirable e.g. pain or weather". It carries 4 recorded senses.
used of the degree of something undesirable e.g. pain or weather
something hard to endure
“the asperity of northern winters”
extreme plainness
excessive sternness
“severity of character”
“the harshness of his punishment was inhuman”
“the rigors of boot camp”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for severeness come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.