From Longman Dictionary of Contemporary Englishundermannedun‧der‧manned /ˌʌndəˈmænd◂ $ -ər-/ adjective BEa ship, office etc that is undermanned does not have enough workers to operate effectively SYN understaffed
Examples from the Corpus
undermanned• In this sense, Mr Raban's vessel is undermanned.• The public prosecutor's offices are hopelessly undermanned.• Reserves Perry Carter and Lionel Washington handled the emergency responsibilities with little problem, easing the burden of an undermanned secondary.• It must have felt solitary sometimes at night alone in that old house now in decline, undermanned, vulnerable.From Longman Business Dictionaryundermannedun‧der‧manned /ˌʌndəˈmænd◂-ər-/ adjectiveHUMAN RESOURCES an office, department, organization etc that is undermanned has fewer people working in it than it really needsThe department is poorly funded and hopelessly undermanned. —undermanning noun [uncountable]the problem of undermanning