unreliable /ˌʌnrɪˈlajəbəl/ adjective /ˌʌnrɪˈlajəbəl/
adjective
Learner's definition of UNRELIABLE
[more unreliable; most unreliable]
1
: not able to be trusted to do or provide what is needed or promised不可靠的;靠不住的 2
: not believable or trustworthy不可相信的;不可信赖的
— unreliability
/ˌʌnrɪˌlajəˈbɪləti/ noun [noncount] — unreliably
/ˌʌnrɪˈlajəbli/ adverb