verb, of person
to be reliable; (of object or situation) to be reasonable
這人真不靠譜。
这人真不靠谱。
zhèi rén zhēn bù kào pǔ ． This guy is so untrustworthy.
Definitions (兩岸三地生活差異詞語彙編—Two Shores Three Places)
日常用語：臺
可靠
日常用語：陸
靠譜
Examples (Tatoeba—Mandarin-English)
Mandarin
她不靠谱因为她经常说谎。
她不靠譜因為她經常説謊。
tā bù kào pǔ yīn wèi tā jīng cháng shuō huǎng 。
She cannot be relied on because she often tells lies.
Examples (Wiktionary)
Mandarin
这人真不靠谱。
這人真不靠譜。
zhèi rén zhēn bù kào pǔ ．
This guy is so untrustworthy.
Mandarin
他虽然看起来大大咧咧，实际上关键时候还挺靠谱，这不，他第一个就发现了我脸色的不对劲，关心起来。
他雖然看起來大大咧咧，實際上關鍵時候還挺靠譜，這不，他第一個就發現了我臉色的不對勁，關心起來。
tā suī rán kàn qǐ lái dà dà liē liē ， shí jì shàng guān jiàn shí hòu hái tǐng kào pǔ ， zhè bù ， tā dì yī ge jiù fā xiàn le wǒ liǎn sè de bù duì jìn ， guān xīn qǐ lái ．
Although he seems casual in manner, he is actually quite reliable during critical moments. [I didn't mean to bring this up but here is an evidence of that]; Look, he was the first to notice that something was wrong from my appearance, and asked about it.