Woodlogos
Upper
ISEE Prep  /  Words  /  Upper  /  unfathomable

unfathomable

/ʌnˈfæðəməbl/
un · fath · om · a · ble /ʌn · ˈfæð · əm · ə · bl/
English Definition
adj. difficult or impossible to understand
中文释义
难以理解的
Significado en Español
insondable
한국어 뜻
헤아릴 수 없는
Nghĩa Tiếng Việt
không thể hiểu nổi
Show meaning in
Example Sentence

The vastness of the universe is truly unfathomable.

宇宙的浩瀚真是难以理解的。

Synonyms
incomprehensible inscrutable mysterious obscure
💡
Memory Aid / 记忆技巧
un(not)+fathom(measure)+able(able)→ difficult to measure; difficult to understand, unfathomable.
Know this word? Mark it mastered, or move on.
← Previous Next →

Practice — Synonym (ISEE Verbal)

Choose the word that is closest in meaning to “unfathomable”:

  1. A comprehensive
  2. B simple
  3. C mystifying
  4. D ordinary
Show answer

C — mystifying. “unfathomable” means adj. difficult or impossible to understand

Practice — Sentence Completion (ISEE Verbal)

The sheer vastness of the universe is almost ______ to the human mind.

  1. A obvious
  2. B unfathomable
  3. C simple
  4. D clear
Show answer

B — unfathomable. “unfathomable” means adj. difficult or impossible to understand

More Upper-level ISEE words

ascend dazzle exodus induce omnipresent rejuvenate truism tyrannical tyrant unscathed unscrupulous upheaval

Common questions about “unfathomable”

What does “unfathomable” mean?

unfathomable — adj. difficult or impossible to understand. In Chinese: 难以理解的.

How do you pronounce “unfathomable”?

unfathomable is pronounced /ʌnˈfæðəməbl/. It breaks into 5 syllables: un · fath · om · a · ble.

How do you use “unfathomable” in a sentence?

The vastness of the universe is truly unfathomable. (宇宙的浩瀚真是难以理解的。)

What are synonyms for “unfathomable”?

incomprehensible, inscrutable, mysterious, obscure — all close in meaning to unfathomable (adj. difficult or impossible to understand).

Is “unfathomable” an ISEE Upper-level word?

Yes. unfathomable appears on the iSEE Vocab Upper list, which covers 800+ words for the ISEE and SSAT.

How can I remember “unfathomable”?

un(not)+fathom(measure)+able(able)→ difficult to measure; difficult to understand, unfathomable.

Progress / 学习进度
96%
through this level
This level: 0 mastered (0% of the level)
⬇ Download the iSEE Vocab app to keep tracking your learning progress across sessions and devices. / 下载 iSEE Vocab App，持续跟进你的学习进度。
⬇ Download iSEE Vocab & keep learning / 下载 iSEE Vocab 继续学习