listo1

¹ = clever [cleverer -comp., cleverest -sup.], brainy [brainier -comp., brainiest -sup.], shrewd [shrewder -comp., shrewdest -sup.].

Ex. It is readily possible to construct a machine which will manipulate premises in accordance with formal logic, simply by the clever use of relay circuits.

Ex. It has been said that, with this show, a canny critic inaugurated the enticingly slick and brainy strain of 1980s art.

Ex. Payment is very important and can be a problem so the businessman needs to be streetwise and shrewd with a good business acumen.

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* no muy listos, los = none-too-bright, the.

* persona no muy lista pero trabajadora = plodder.