空そら約やく束そくMeaningsNoun1. empty promise; hollow promiseOther readings空から約やく束そくKanji used空empty air約promise束bundleComposed of空そらsky; the air; the heavens; weather; far-off place; distant place; state of mind; feeling; (from) memory; (by) heart; …Noun約やく束そくpromise; agreement; arrangement; one's word; contract; pact; appointment; engagement; date; convention; …Noun