all there[adjective]Synonyms: sane, compos mentis, lucid, normal, right
[TahlilGaran] English Synonym Dictionary ▲
all there adj. phr.,
informal Understanding well; thinking clearly; not crazy.
■ Usually used in negative sentences,
Joe acted queerly and talked wildly, so we thought he was not all there. [TahlilGaran] English Idioms Dictionary ▲