Negative prefixesOnline version group the words by Adri Adri 1 IM- 2 IR- 3 IL- 4 DIS- 5 IN- 6 UN- 7 NON- 8 A- mobile moral perfect possible rational responsible regular resistible legal logical legible literate agree courage honor infect decent adequate complete sufficient interesting usual comfortable helpful conformist essential fiction sense political typical sexual theist