IPA: //ʌnɪkˈsaɪtɪŋ//
KK: /ʌnɪkˈsaɪtɪŋ/
Something that is dull or lacks interest; it does not create excitement or enthusiasm.
The movie was unexciting, and I almost fell asleep while watching it.
Unexciting → It is formed from "un-" (meaning not) and "exciting" (from Latin "excitare", meaning to rouse or stir up). The word "unexciting" means not rousing or not stirring up interest or excitement.
Think of 'not' ('un-') making something 'rousing' or 'stirring' ('exciting') less interesting — that's why unexciting means something that fails to excite.