extrinsic
词形变化：
同义词：
outer | exterior | adventitious | circumstantial | extraneous | side | accidental | outside | outward |
反义词：
词义辨析：
同义参见:
side
extraneous
exterior
adventitious
outward
outside
outer
circumstantial
accidental
反义:
a.非本质的; 外来的
intrinsic