Words the Bible translates as unblemished

English uses one word here. The Bible uses 2 words, and they do not mean the same thing. Each is listed with what it actually means, most frequent first.

amōmosἄμωμοςwithout blemish; free of any flaw that would make an offering or a life unfit to be presented to God
tamimתָּמִיםwithout blemish: physically whole and sound, with nothing missing, broken, or damaged
+2 more meanings
- blameless: whole in character and conduct, undivided in loyalty to God, with nothing false or double held back
- Thummim: the sacred lot used with the Urim to seek God's answer

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Every English meaning beginning with U is on its letter page, and the whole index starts at Browse.