Added 9 October 2026 fibrous /ˈfaɪbɹəs/ adjective Categories: Describing WordsUncommon Words adjective ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about fibrous at Wordnik → Where our words come from → Having or resembling fibers especially fibers used in making cordage such as those of jute. (of meat) full of sinews; especially impossible to chew. Related Words: sinewyhempenstringytoughunchewablefibrotictissuefibertextilefriablebrittleconnective Back to today's word