dissimilar
1. [ adjective ] not similar
Examples:

"a group of very dissimilar people" "a pump not dissimilar to those once found on every farm" "their understanding of the world is not so dissimilar from our own" "took different (or dissimilar) approaches to the problem"

Related terms: similar similarity
2. [ adjective ] not alike or similar
Synonyms: unalike
Examples:

"as unalike as two people could be"

Related terms: alike likeness
3. [ adjective ] not like; marked by dissimilarity
Synonyms: unlike different
Examples:

"for twins they are very unlike" "people are profoundly different"

Related terms: like different
Similar spelling:   dissimilarity
  dissimilate
  dissimilation
  dissimilitude
  dissimulate
  dismally
  dissimulative
  dissimulation
  dissimulating