creak‧y /ˈkriːki/ adjective

1. something such as a door, floor, or bed that is creaky creaks when you open it, walk on it, sit on it etc, especially because it is old and not in good condition:
creaky stairs

2. an organization, company etc that is creaky uses old-fashioned methods and does not work very well:
creaky state-owned factories
—creakily adverb
—creakiness noun [uncountable]

[TahlilGaran] Dictionary of Contemporary English ▲