Adjective

1. uninspired, unexciting (vs. exciting)

usage: having no intellectual or emotional or spiritual excitement; "the production was professional but uninspired"

2. sterile, unimaginative, uninspired, uninventive, uncreative (vs. creative)

usage: deficient in originality or creativity; lacking powers of invention; "a sterile ideology lacking in originality"; "unimaginative development of a musical theme"; "uninspired writing"

See also: uninspired (Dictionary)