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Use "unrewarding" in a sentence
"MylesL the movie is beautifully crafted, but very slow and "unrewarding" in plot."
"It's now an unpleasant unrewarding chore without the yummy creaminess."
"The Independent (UK) ... its narrative strands are not sufficiently developed to engage ... the deliberately congested authorship, which seems the novel's greater emphasis, remains self-referential and unrewarding."