- 1subject to something likely to be affected by something, especially something bad Flights are subject to delay because of the fog. Smokers are more subject to heart attacks than non-smokers.
- 2 subject to something depending on something in order to be completed or agreed The article is ready to publish, subject to your approval. All specially-priced vacation packages are subject to availability.
- 3subject to something/somebody under the authority of something or someone All nuclear installations are subject to international safeguards. As a diplomat, he is not subject to local laws.
- 4[only before noun] (formal) controlled by the government of another country subject peoples