self-consciousness has 2 distinct synonyms spread across 1 of its 2 senses. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. Its one recorded opposite is unselfconsciousness.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
embarrassment deriving from the feeling that others are critically aware of you
self-awareness plus the additional realization that others are similarly aware of you
Synonyms, antonyms and the broader and narrower relations for self-consciousness come from Princeton University’s WordNet. Full sources and licences.