na-adjective, noun which may take the genitive case particle 'no', noun
non-disabled; able-bodied; healthy
Used to describe people without physical or mental disabilities, often in contrast to 障害者 (disabled person). Common in social welfare and medical contexts.
We aim for a workplace where non-disabled and disabled people can work together.
He is grateful that he was born with a healthy body.
Compound of 健 (healthy, strong) and 常 (normal, usual). The exact historical derivation is uncertain, but the word is conventionally associated with the meaning 'normal health' or 'non-disabled'.