say it: REE-zuh-nuh-buhl-nuhs
reasonableness is a noun meaning "the state of having good sense and sound judgment". It carries 5 recorded senses.
the state of having good sense and sound judgment
“his rationality may have been impaired”
“he had to rely less on reason than on rousing their emotions”
goodness of reason and judgment
“the judiciary is built on the reasonableness of judges”
the property of being moderate in price or expenditures
“the store is famous for the reasonableness of its prices”
“the modestness of the living standards here becomes obvious immediately”
moderation in expectations
“without greater reasonableness by both parties we will never settle this matter!”
the quality of being plausible or acceptable to a reasonable person
“he questioned the tenability of my claims”
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 reasonableness come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.