Antonyms of adj ungratifying

1 sense of ungratifying

Sense 1
thankless, unappreciated, ungratifying -- (not likely to be rewarded; "grading papers is a thankless task")

INDIRECT (VIA unrewarding) -> rewarding -- (providing personal satisfaction; "a rewarding career as a paramedic")

Similarity of adj ungratifying

1 sense of ungratifying

Sense 1
thankless, unappreciated, ungratifying -- (not likely to be rewarded; "grading papers is a thankless task")
       => unrewarding (vs. rewarding) -- (not rewarding; not providing personal satisfaction)