fruitless vs vegetative

Of a diet, etc.: without fruit. 

Bearing no fruit; barren. 

Unproductive, useless. 

Physically inactive. 

Of a state of impaired brain function, where a person can respond to some stimuli but is incapable of voluntary acts. 

Of or relating to functions such as growth, nutrition and asexual reproduction rather than sexual reproduction. 

Of or relating to plants; especially to their growth.