Synonyms For "Slow" :

1 syllable:

dense, dim, dull, dumb, slack

2 syllables:

behind, boring, easy, irksome, laggard, largo, lazy, lento, obtuse, pokey, poky, retard, slacken, slowly, sluggish, stupid, sulky

3 syllables:

andante, deadening, gradual, larghetto, tardily, tedious, tiresome, unhurried, wearisome

4 syllables:

adagio, decelerate, dilatory, larghissimo, lentissimo, moderato