| Word | Definitions | Synonyms |
|---|---|---|
| nonobjective | (adjective) not representing or imitating external reality or the objects of nature | Synonyms: abstract, abstractionist, nonfigurative |
| nonobligatory | (adjective) not required by rule or law | Synonyms: nonmandatory |
| nonobservant | (adjective) failing or refusing to observe religious customs | - |
| nonopening | (adjective) not open; not opening | - |
| nonoperational | (adjective) (military) not involved in military operations | Synonyms: inactive |
| nonoscillatory | (adjective) not having periodic vibrations | - |