Not synthetic (7)
I believe the answer is:
natural
(Other definitions for natural that I've seen before include "Unrefined person" , "Plain - lifelike" , "(Of fabric) off-white" , "Normal; off-white" , "Unaffected - musical character" .)
I believe the answer is:
natural
(Other definitions for natural that I've seen before include "Unrefined person" , "Plain - lifelike" , "(Of fabric) off-white" , "Normal; off-white" , "Unaffected - musical character" .)