The opposite of an imaginative concept would be unimaginative -- dull, boring, repetitive, or common. Similarly a person who is not imaginative would be dull, predictable, or uncreative.
Imaginative, creative, inventive
Imaginative suggestibility is a person's susceptibility to believing and experiencing vivid mental images suggested by others. People high in imaginative suggestibility may be more likely to generate detailed mental imagery in response to suggestions or instructions.
Biographical fiction
Biographical fiction
Because he is a clever, imaginative person.
An Imaginative Experience was created in 1994.
Imaginative Tales ended in 1958.
Imaginative Tales was created in 1954.
There are many imaginative ways to throw a 50th birthday party. Surprise parties are a popular option for a birthday milestone of this magnitude. Also, themed parties in which guests are asked to dress up can also be imaginative and relate to the specific taste to the person whose birthday is being celebrated.
Imaginative is an adjective. Therefore, there is not an adjective that will describe imaginative.
Imaginative mean you have a good imagination.