IPA: /ˌtɛmpəˈrɛnəs/
KK: /tɛmpəˈrɛrɪnəs/
The quality or state of lasting for a limited time; not permanent.
The temporariness of the job made it difficult to plan for the future.
Temporariness → It is formed from "temporarius" (from Latin, meaning temporary or lasting for a time) and the suffix "-ness" (meaning the state or quality of). The word "temporariness" refers to the state of being temporary or not permanent.
Think of 'temporary' as something that lasts for a 'time' ('temporarius') and remember that 'temporariness' means the quality of being temporary.