Idonea \i-do-nea\ as a girl's name is a variant of Idona (German). See for meaning of Idonea.

The baby name Idonea sounds like Idonna, Idone and Idonia. Other similar baby names are Adonia, Ilona, Idania, Idina, Iduna, Idonie, Idonah, Idunna, Ilonna, Ilone, Iona, Ione, Ionia, Irenea and Ivonna.