say it: ri-GRET-uh-buhl
regrettable is an adjective meaning "deserving regret". It carries one recorded sense.
deserving regret
“regrettable remarks”
“it's regrettable that she didn't go to college”
“it's too bad he had no feeling himself for church”
Definitions, synonyms and semantic relations for regrettable 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.