Haruhiko
Green Belt
No Universally accepted definition of "Martial Art' for common current usage .
As far as a universal definition, I don't think there will ever be one.
Definition of MARTIAL ART
any of several arts of combat and self-defense (such as karate and judo) that are widely practiced as sportā¦ See the full definition
www.merriam-webster.com
Martial art | Definition, History, Types, & Facts | Britannica
Martial art, any of various fighting sports or skills, mainly of East Asian origin, such as kung fu, judo, karate, and kendo. The primary unifying aspect of the East Asian martial arts, which sets them apart from other martial arts, is the influence of Daoism and Zen Buddhism.
www.britannica.com
martial art
1. a traditional Japanese, Chinese, or Korean form of fighting or defendingā¦
dictionary.cambridge.org
Interesting in that they define it rather differently.
I think it's contextual. There's nothing artistic about UFC fights in my opinion, for example. And I'm sure someone would be of the same opinion of there being nothing martial to be found in iaido.
It was when I started training for the Commonwealth Games in TKD that I lost sight of any art within the system. It became a sport.