Synonym: innocuous, nonmalignant. Similar words: tactlessness, harm, charm, harmed, harmful, harmony, harmonize, harmonious. Meaning: ['hɑrmlɪs /hɑːm-] 
adj. 1. not causing or capable of causing harm 2. not injurious to physical or mental health 3. not producing any toxic effects 4. unlikely to harm or disturb anyone 5. not threatening to life or health; not malignant.
adj. 1. not causing or capable of causing harm 2. not injurious to physical or mental health 3. not producing any toxic effects 4. unlikely to harm or disturb anyone 5. not threatening to life or health; not malignant. 
Random good picture Not show
1. Her brother's a bit simple, but he's quite harmless.
2. Even harmless drugs can be misused.
3. The boys' games started as harmless fun but ended in tragedy.
4. Those who think this is a harmless recreational drug should wise up.
5. He looks harmless enough.
6. Industry has been working at developing harmless substitutes for these gases.
7. Most people considered him a harmless eccentric.
8. Voyeurs are scary, but they are usually harmless.
9. It's just a bit of harmless fun.
10. He's a harmless enough chap.
11. They killed the harmless old man in cold blood.
11. Wish you can benefit from sentencedict.com and make progress everyday!
12. These chemicals quickly degrade into harmless compounds.
13. This experiment was harmless to the animals.
14. It was just a piece of harmless frivolity.
15. The bacteria is harmless to humans.
16. Horoscopes are merely harmless escapism from an ever-bleaker world.
17. The substance is harmless to people.
18. It was just a harmless frolic.
19. It was a harmless flirtation and nothing more.
20. It was just a bit of harmless fun .
21. I would not want to deny them a harmless pleasure.
22. The trouble was sparked off by an apparently harmless phrase.
23. You may call it harmless fun, but I call it pornography.
24. The bomb blast killed several harmless passers - by .
25. Judged harmless, Paul was released on his own cognizance.
26. Peter might look a bit fierce, but actually he's fairly harmless.
27. According to received wisdom, exposure to low level radioactivity is harmless.
28. Don't be such a prig! It's only a bit of harmless fun!
29. For a long time it was thought to be a harmless substance, but we now have proof/evidence to the contrary.
30. There were those who found the joke offensive, but Johnson insisted it was just a bit of harmless fun.
More similar words: tactlessness, harm, charm, harmed, harmful, harmony, harmonize, harmonious, disharmony, less, bless, unless, lesson, endless, careless, witless, harness, hopeless, tactless, nonetheless, reckless, flawless, much less, homeless, senseless, guileless, pointless, breathless, changeless, regardless.