say it: uhn-REEZ-nuh-buhl
unreasonable is an adjective meaning "not reasonable; not showing good judgment". It carries 2 recorded senses.
not reasonable; not showing good judgment
beyond normal limits
“excessive charges”
“a book of inordinate length”
“his dress stops just short of undue elegance”
“unreasonable demands”
Definitions, synonyms and semantic relations for unreasonable 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.