unchallenged
/ˌʌnˈtʃælɪndʒd/adjective
1- not disputed or questioned未受置疑的; 无异议的：
the report's findings did not go unchallenged.
报告的结果并非未受置疑。
1.1
- (especially of a person in power) not opposed or defeated（尤指当权者）未受挑战的; 未被击败的：
a position of unchallenged supremacy.
无人挑战的至高无上地位。
1.2
- not called on to prove one's identity or allegiance未受置疑的; 未受盘问的：
they walked unchallenged into a hospital and stole a baby.
他们未受盘问进入医院偷走了一名婴儿。