all there
Of sound mind
Mentally alert and competent.
The phrase appears almost exclusively in negations: He's not all there, She isn't quite all there.
Someone who isn't all there may be slow-witted, senile, distracted, or simply odd.
The positive form is rare outside questions: Are you all there?
Mentally focused and rational
- coherentLogically connected throughout
- rationalGoverned by logic
- saneMentally healthy, clearheaded
- soundAudible wave phenomenon
sober · cogent · oriented · composed · together · unclouded · grounded · stable
Paying close notice
- sharpFine-edged, or astute
- awareHaving knowledge of
- awakeNot in slumber
- responsiveQuick to react
ready · focused · present · vigilant · observant · watchful · quick · perceptive
clearheaded
Mentally focused and rational
sound · sober · cogent · oriented · composed · together · unclouded · grounded · stable · balanced
attentive
Paying close notice
responsive · ready · focused · present · vigilant · observant · watchful · quick · perceptive · on the ball
quick-witted
Fast at thinking
- intelligentHaving mental acuity
- astuteMentally sharp, discerning
- brightEmitting or reflecting light
smart · clever · shrewd · savvy · incisive · acute · brilliant · sharp as a tack · nimble · perspicacious
- mentally sharpsharp mind, clear head, lucid, focused, alert
all thereout of one's mind
Mentally unhinged
not all there · not right in the head · crazy · insane · deranged
all thereout of it
Lacking awareness or alertness
not all there · spacey · spaced out · zoned out · dazed
all, there, altogether, thereby, therein, thereof, thereto, wherefore