Antonyms of adj unabashed

1 sense of unabashed

Sense 1
unabashed, unembarrassed -- (not embarrassed; "a tinseled charm and unabashed sentimentality"- Jerome Stone; "an unembarrassed greeting as if nothing untoward had happened")

INDIRECT (VIA unashamed) -> ashamed -- (feeling shame or guilt or embarrassment or remorse; "are you ashamed for having lied?"; "felt ashamed of my torn coat")

Similarity of adj unabashed

1 sense of unabashed

Sense 1
unabashed, unembarrassed -- (not embarrassed; "a tinseled charm and unabashed sentimentality"- Jerome Stone; "an unembarrassed greeting as if nothing untoward had happened")
       => unashamed (vs. ashamed) -- (used of persons or their behavior; feeling no shame)