unimaginative adj. + Add to list US //ənɪˈmæˌdʒɪnətɪv// UK //ˌʌnɪmˈædʒɪnətˌɪv// unimag·i·na·tive SynonymsEtymology Synonyms stereotypedstereotypicstereotypicalsterileuninspireduninventiveOrigin From un- + imaginative.