The word "Unfrequency" is not a common term and is not found in most dictionaries. However, it can be broken down into two parts: "Un-" which means not or opposite, and "frequency" which refers to the rate at which something occurs. When pronounced, "Unfrequency" is pronounced as /ʌnˈfrikwənsi/, with the stress on the second syllable. The "un" sound is pronounced as the short vowel sound of "uh" and the "qu" sound is pronounced as a hard "k" sound followed by a "w" sound.