无奈

to have no alternative / frustrated / exasperated / helpless / (conjunction) but unfortunately

not to have / no / none / not / to lack / un- / -less

used in expressions that convey frustration and futility, such as 無奈|无奈[wu2 nai4] and 莫可奈何|莫可奈何[mo4 ke3 nai4 he2] (literary) / used for its phonetic value in writing foreign words

to have no way out / to have no alternative