adventitious
词形变化：
副词: adventitiously | 名词: adventitiousness |
同义词：
adventuresome | daring | bold | audacious | brave | venturesome | courageous | gallant | enterprising | intrepid | undaunted | dauntless | heroic | plucky | spirited | chivalrous | fearless | valiant | hazardous | risky | perilous | uncertain | precarious | dangerous | jeopardous | chancy | game | rash | daredevil | reckless | hasty | foolhardy | imprudent | brash | impetuous | headlong | injudicious | incautious | indiscreet | exploratory | exciting | adventurous | carefree | risk-taking |
反义词：
词义辨析：
同义:
a.外来的, 偶然的, 机遇的
extrinsic
external
extraneous
supervenient
foreign
alien
incidental
accidental
nonessential
chance
fortuitous
serendipitous casual
random
haphazard
同义参见:
outward
side
contingent
casual
circumstantial