Baneful, bad, and baleful are all synonyms for harmful. Beneficial and harmless are antonyms of harmful. And here are 33 another word for harmful.
The adjective "harmful" has a variety of synonyms that differ in length. 1 synonym with 3 letters, 1 synonym with 4 letters, 1 synonym with 5 letters, 3 synonyms with 6 letters, 4 synonyms with 7 letters, 3 synonyms with 8 letters, 6 synonyms with 9 letters, 5 synonyms with 10 letters, 4 synonyms with 11 letters, 1 synonym with 12 letters, 1 synonym with 15 letters, and 1 synonym with 25 letters, for a total of 31 synonyms for harmful.
Smoking is harmful to health.
Harmful chemicals damage the environment.
Excessive stress can be harmful.
Certain habits are potentially harmful.
| Word | Opposites | Synonyms |
|---|---|---|
| Charge | Withdraw, retreat | Ask in payment, ask |
| Beautiful | Ugly, unattractive | Attractive, pretty |
| Fulfilling | Empty, unsatisfying | Gratifying, satisfying |
| Fulfil | Fail in, neglect | Succeed in, attain |
| Cheerful | Sad, cheerless | Happy, jolly |
| Powerful | Weak, helpless | Influential, high-powered |
| Respectful | Disrespectful, rude | Deferential, reverent |
| Colorful | Colorless, dull, drab | Brightly coloured, bright-coloured |
| Fully | Partially, nearly | Completely, entirely |
| Successful | Unsuccessful, unsuccessful, unprofitable, poor | Victorious, triumphant |
| Earful | Silence, quiet | Informative talk, long explanation |
| Charm | Repulsion, annoyance | Delight, please |
| Charming | Unpleasant, repulsive | Delightful, pleasing |
| Harmony | Discord, conflict | Euphony, polyphony |
| Share | Be excluded from, withhold, keep | Split, divide |
| Sharp | Dull, blunt | Keen, sharp-edged |
| Characterize | Obscure, misrepresent | Distinguish, make distinctive |
| Fruitful | Fruitless, futile | Fruit-bearing, fructiferous |
| Hardship | Prosperity, ease | Privation, deprivation |
| Joyful | Sad, miserable, distressing, depressing | Cheerful, happy |
| Mindful | Heedless, oblivious | Aware of, conscious of |
| Awful | Lovely, wonderful, good, excellent | Very unpleasant, disgusting |
| Hopeful | Pessimistic, discouraging | Optimistic, full of hope |
| Warm | Cold, cool, chilly, chilled | Hot, warming |
| Harm | Benefit, good | Injury, hurt |
| Thoughtful | Vacant, superficial | Pensive, thinking |
| Thankful | Disappointed, ungrateful | Grateful, appreciative |
| Hopefully | Pessimistically, doubtfully | Optimistically, with hope |
| Character | Villain, corruption | Personality, nature |
| Hard work | Laziness, idleness | Diligence, effort |
| Impactful | Ineffective, insignificant | Influential, powerful |
| Careful | Careless, reckless | Cautious, heedful |
| Harsh | Soft, dulcet, subdued | Grating, jarring |
| Characteristic | Anomaly, irregularity | Attribute, feature |
| Meaningful | Meaningless, inconsequential | Significant, relevant |
| Grateful | Ungrateful, indifferent | Appreciative, thankful |
| Hard | Soft, light | Firm, solid |
| Wonderful | Awful, dreadful | Marvellous, magnificent |
| Full | Empty, incomplete, selective, partial, vague | Filled, filled up |