[adj] making lively and cheerful; "the exhilarating effect of mountain air" [adj] rousing or quickening activity or the senses; "a stimulating discussion" [adj] that stimulates; "stimulant phenomena"
challenging, exciting, exhilarating, invigorating, piquant, rousing, salty, stimulant, stirring, thought-provoking, thrilling
unexciting, unstimulating