"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"
2. not alike or similar;
"as unalike as two people could be"
3. not like; marked by dissimilarity;
"for twins they are very unlike""people are profoundly different"