| Word | Definitions | Synonyms |
|---|---|---|
| subnormal | (adjective) below normal or average | - |
| (noun) a person of less than normal intelligence | - | |
| subnormality | (noun) lack of normal development of intellectual capacities | Synonyms: backwardness, mental retardation, retardation, slowness |
| (noun) the state of being less than normal (especially with respect to intelligence) | - |