You searched English word "Fastness" meaning in Urdu that is "پائیداری". Fastness translation from English into Roman Urdu is paedaari. Fastness is a Noun. We Spell Fastness as [fast-nis, Fahst-]. Fastness meaning in Urdu has been searched 1555 ( one thousand five hundred fifty five ) times till today 04/08/2026. Get translation of the word Fastness in Urdu and Roman Urdu. Learn how to speak Fastness Word in Urdu and English. You may also find the meaning of Word Fastness in English to Urdu, Arabic, Spanish, French, German, Hindi and other languages.