[ 3 syll. (t)had-dea, th-add-ea ] The baby girl name Thaddea is pronounced as -THAED-iy-aa- †. Thaddea is largely used in the Greek language, and its origin is Aramaic and Old Greek. From Aramaic roots, its meaning is wise, valiant.
In addition, Thaddea is a variant transcription of the name Theodora (English, German, and Greek).
Thaddea has 17 variant transcriptions that are used in English and other languages. Variation transcriptions used in English include Taddea, Thada, Thadda, Thaddeah, Thaddia, Thaddina, Thaddine, Thadea, Thadia, Thadie, Thadina, Thadine, Thady, Thadya, Thadyna, and Thadyne. A variant transcription of Thaddea in other languages is Tadea (Polish).
Thaddea is not regularly used as a baby name for girls. It is not listed in the top 1000 names.
† English pronunciation for Thaddea: TH as in "theme (TH.IY.M)" ; AE as in "at (AE.T)" ; D as in "day (D.EY)" ; IY as in "eat (IY.T)" ; AA as in "odd (AA.D)"