HARMLESS

1. [s] not threatening to life or health; not malignant; "a benign tumor is usually harmless"

2. [a] not causing or capable of causing harm; "harmless bacteria"; "rendered the bomb harmless"

3. [a] not injurious to physical or mental health

4. [s] unlikely to harm or disturb anyone; "harmless old man"

5. [s] not producing any toxic effects

similar words

1. [a] benign

2. [a] benignant

3. [s] innocent

4. [s] innocuous

5. [s] inoffensive

6. [s] unoffending

7. [s] innoxious

8. [s] inoffensive

9. [s] uncontroversial

10. [s] insipid

11. [a] safe

12. [a] nontoxic

13. [a] atoxic

opposite words

1. [a] harmful

2. [a] noxious

3. [a] harmful