adj.深不可測的；無法理解的

Was water there, unfathomed depth of water? 抑為水載，其深莫測？

The two separated shores mingle their voices in a song of unfathomed tears. 遙相注目的兩岸在難以測度的深海淚歌中彼此唱和。

It is an unfathomed and difficult problem that weak and small targets are detected in complicated background and low SNR. 摘要復雜背景下低信噪比弱小目標的自動檢測是當今目標自動探測研究尚未解決的一個難題。

What covered in, and where? and what gave shelter?Was water there, unfathomed depth of water? 有什么被覆蓋，在哪里 是什么給予掩蔽 有水 無法度量的深淵嗎？

At last, we advance some unfathomed problem and prospect foreground of cast-in-place piles. 最后,本文提出了本次試驗尚未解決的一些問題,并對支盤樁的前景進行了展望。