Compare downer with other words:
downer vs. dowser
downer vs. drowner
downed vs. downer
downer vs. owner
dower vs. downer
downer vs. narcotic
depressing vs. downer
dispiriting vs. downer
disagreeable vs. downer
depressant vs. downer
downer vs. drug
downer vs. trip
downer vs. negative
downer vs. sedative
choker vs. downer
down vs. downer