non-intrusionist
/ˌnɒnɪnˈtruːʒ(ə)nɪst/Now historical
noun
A person who favours non-intrusion.
adjective
That favours or advocates non-intrusion; relating to non-intrusion.
Origin
Mid 19th century; earliest use found in Thomas De Quincey (1785–1859), essayist. From non- + intrusionist, after non-intrusion.