Antonyms of adj unhopeful

1 sense of unhopeful

Sense 1
abject, unhopeful -- (showing utter resignation or hopelessness; "abject surrender")

INDIRECT (VIA hopeless) -> hopeful -- (having or manifesting hope; "a line of people hopeful of obtaining tickets"; "found a hopeful way of attacking the problem")

Similarity of adj unhopeful

1 sense of unhopeful

Sense 1
abject, unhopeful -- (showing utter resignation or hopelessness; "abject surrender")
       => hopeless (vs. hopeful) -- (without hope because there seems to be no possibility of comfort or success; "in an agony of hopeless grief"; "with a hopeless sigh he sat down")