(ˌnɒnɡrɪˈɡɛərɪəs) adj (Biology) relating to plants or animals that do not grow or live in groups; solitaryThesaurus
Adj.
1.
nongregarious - of plants and animals; not growing or living in groups or colonies; "solitary bees"nonsocial, solitaryungregarious - (of animals) not gregarious