Harmful and Unsafe

Harmful

Harmful adjective - Causing or capable of causing harm.
Usage example: DDT has been proven to be extremely harmful to the environment

Unsafe and harmful are semantically related in injurious topic. In some cases you can use "Unsafe" instead an adjective "Harmful".

Unsafe

Unsafe adjective - Involving potential loss or injury.
Usage example: workers are forbidden from engaging in unsafe activities on company time

Harmful and unsafe are semantically related in destructive topic. Sometimes you can use "Harmful" instead an adjective "Unsafe".

Nearby Word: unsafely
Cite this Source
Unsafe and Harmful. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/harmful/unsafe
Harmful & Unsafe. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/harmful/unsafe>.
Unsafe or Harmful. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/harmful/unsafe.
Google Ngram Viewer shows how "harmful" and "unsafe" have occurred on timeline