Added 9 October 2026 fastened /ˈfɑːsn̩d/ adjective Categories: Describing WordsUncommon Words adjective ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about fastened at Wordnik → Where our words come from → Firmly closed or secured. found the gate fastened Furnished or closed with buttons or something buttonlike. Fastened with strings or cords. a neatly tied bundle Related Words: barredboltedbotoneebotonneebutton-downbuttonedfastfixedknottedlatchedlockedpegged-down Back to today's word