Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb disillusion

1 sense of disillusion

Sense 1
disenchant, disillusion -- (free from enchantment)
       => disappoint, let down -- (fail to meet the hopes or expectations of; "Her boyfriend let her down when he did not propose marriage")

Antonyms of adj disillusioning

1 sense of disillusioning

Sense 1
disenchanting, disillusioning -- (freeing from illusion or false belief)

INDIRECT (VIA convincing) -> unconvincing, flimsy -- (not convincing; "unconvincing argument"; "as unconvincing as a forced smile")

Similarity of adj disillusioning

1 sense of disillusioning

Sense 1
disenchanting, disillusioning -- (freeing from illusion or false belief)
       => convincing (vs. unconvincing) -- (causing one to believe the truth of something; "a convincing story"; "a convincing manner")