Is TV-MA worse than R?

TV-MA is a more severe rating than R. TV-MA is the equivalent of NC-17 in the US. Note that R and MA are used by two different groups. The MPAA (Motion Picture Association of America) uses a rating system that you can review here where R is the second most severe, coming up behind NC-17.

Can a 14 year old watch TV-Ma?

The TV-MA rating, according to the TV Parental Guidelines website, means “This program is specifically designed to be viewed by adults and therefore may be unsuitable for children under 17.”