Words That Rhyme With "Decider" :

2 syllables:

cider, cyder, eider, Frieder, glider, guider, hider, rider, Ryder, schneider, sider, slider, snider, spider, strider, stridor, wider

3 syllables:

collider, divider, insider, offsider, outsider, provider

4 syllables:

subdivider

5 syllables:

supercollider