Does this word "nomadic" always have to be followed by a noun? or can it be used alone?

Native speaker’s answer
Rebecca
"Nomadic" is the adjective form of "nomad," who is a person who has no permanent home and travels from place to place following their livestock. You can simply use "nomad" instead of "nomadic" here! Ex: The Mongols were nomads that roamed the land, following their livestock. Today, many have given up the nomadic lifestyle. Ex: Many peoples were nomadic in the past, but have now adopted more sedentary lifestyles in the modern age.