1 (not drunk) sobrio to stay sober mantenerse sobrio
to be as sober as a judge
be stone-cold sober
estar perfectamente sobrio 2 (serious, calm) [+person] serio; formal; [+expression] grave; [+attitude, assessment] serio; sobrio; [+fact] cruel; [+reality] crudo; duro after sober reflection después de una seria reflexión
The euphoria that characterized last year's festival has given way to a more sober reality the sober fact that a murder is committed every 3 seconds We are now far more sober and realistic Brian assumed an appropriately sober expression a sober assessment of the situation
3 (dull, subdued) [+clothes, suit, style, decor] sobrio; discreto; [+colour] discreto He was dressed in a sober grey suit