‎calm + ‎-ness → ‎calmness ‎dark + ‎-ness → ‎darkness ‎kind + ‎-ness → ‎kindness ‎one + ‎-ness … Learn more. Sign in to disable ALL ads. Appended to adjectives to form nouns meaning "the state of being (the adjective)", "the quality of being (the adjective)", or "the measure of being (the adjective)". How to say -ness. -ness pronunciation. Thank you for helping build the largest language community on the internet. Listen to the audio pronunciation in English. How to use ness in a sentence. Words are pronounced however people pronounce them, and to insist otherwise is to fight a losing battle. Ness definition is - cape, promontory. Listen to the audio pronunciation of Ness (Irish mythology) on pronouncekiwi. This is why “giff” and “jiff” are equally valid.