As adjectives the difference between supportive and protective
is that supportive is providing support while protective is serving, intended or wishing to protect.
As a noun protective is
(british) something that protects.
supportive
English
Adjective
(
en adjective)
Providing support.
- I had a very supportive coach who helped me.
Antonyms
* unsupportive
protective
English
Adjective
(
en adjective)
Serving, intended or wishing to protect.
Derived terms
* protective custody
Noun
(
en noun)
(British) Something that protects.
A condom.