3 sentences

1. 我不是一个不切实际的女人。

   wǒ bù shì yī gè bù​qiè​shí​jì de nǚ​rén.

   I'm not an impractical woman.

   Source: OpenSubtitles

2. 他的想法太不切实际，根本无法实现。

   tā de xiǎng​fǎ tài bù​qiè​shí​jì, gēn​běn wú​fǎ shí​xiàn.

   His ideas are too unrealistic to ever be realized.

   Source: Dong Chinese Dictionary

3. 你应该面对现实，不要再抱有那些不切实际的幻想了。

   nǐ yīng​gāi miàn​duì xiàn​shí, bù yào zài bào​yǒu nà​xiē bù​qiè​shí​jì de huàn​xiǎng le.

   You should face reality and stop clinging to those unrealistic fantasies.

   Source: Dong Chinese Dictionary