I. (adj.) (belated, behindhand, of clocks, etc.) tarda;

(not quick, sluggish) lenta, nerapida;
(wearisome) tedanta;
(dull) stupida;
(indolent) indolenta, ociera, ne-agema.

II. (adv.)

to be slow of speech - parolar lente.
the clock is five minutes slow - la horlojo tardesas per kin minuti.

III. (v.)

  • (tr.)
to slow down - (a walk, etc.) lentigar, plulentigar.
  • (intr.)
to slow down - lenteskar.