1.Definition: dealing only with concrete facts
2.Definition: deficient in originality or creativity; lacking powers of invention
"Unimaginative development of a musical theme"
Related Adjective(s):sterile, uninspired, uninventive
3.Definition: lacking spontaneity or originality or individuality
"Even his profanity was unimaginative"
Related Adjective(s):stereotyped, stereotypic, stereotypical