Antonyms of adj megalomaniacal
1 sense of megalomaniacal
Sense 1
megalomaniacal, megalomanic -- (suffering from megalomania)
INDIRECT (VIA neurotic) -> unneurotic -- (not neurotic; "successful mothers--mothers with unneurotic children"; "he's the most unneurotic person I know")
Similarity of adj megalomaniacal
1 sense of megalomaniacal
Sense 1
megalomaniacal, megalomanic -- (suffering from megalomania)
=> neurotic (vs. unneurotic), psychoneurotic -- (affected with emotional disorder)