Downtrodden and Dark horse

Downtrodden adjective - Suffering grave abuse or injustice at the hands of one in authority.

Dark horse and downtrodden are semantically related. In some cases you can use "Dark horse" instead a noun "Downtrodden".

Dark horse noun - A racehorse about which little is known.

Downtrodden and dark horse are semantically related. Sometimes you can use "Downtrodden" instead a noun phrase "Dark horse".