adj.
不愿帮忙的;口紧的;不露口风的 not wanting to help or give information about sth
He was very unforthcoming about what had happened.
他对发生的事守口如瓶。
He was very unforthcoming about what had happened .
She was pretty unforthcoming . Made Sally wait till she 'd cooked Selby 's lunch , if you please .
她爱搭不理地把萨莉晾在一边,直到她为塞尔比做好午饭,你说怪不怪。