unfathomable
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unfathomable
- /(ˌ)ʌnˈfæðəməbl̩/ UK
- /ʌnˈfæðm̩əbl̩/ UK
- /ˌʌnˈfæð(ə)məb(ə)l/ US
Where it comes from
From un- (prefix meaning ‘not’) + fathom (“to measure the depth of (water); (figurative) to deeply understand (someone or something)”) + -able (suffix forming adjectives denoting things not able or fit to be done).
adjective more unfathomable · most unfathomable
-
Especially of depth: physically incapable of being measured; immeasurable.
[W]e are not to make our eſtimate of the quantity of VVaters meerly by the Superficies of the Sea, but by its vaſt depth, vvhich in ſome places is unfathomable, and by thoſe vaſt ſubterraneous Receptacles of VVater vvhich pour themſelves out in ſeveral great Ebullitions and Marine Springs: […]
Similar: abyssal, incalculable, inestimable, soundless, unplumbable, unsoundable · Opposite: calculable, estimable, fathomable, measurable, plumbable, soundable
-
Impossible to grasp the extent of, or to fully know or understand.
The sheer number of warriors the enemy attacked with was unfathomable.
Similar: bottomless, fathomless, impenetrable, unintelligible, abstruse, Chinese, dense, enigmatic, Greek, inapprehensible, incognizable, incomprehensible · Opposite: explicable, fathomable, intelligible, penetrable, understandable, apprehensible, clear, limpid, comprehensible, explainable, explicatable, graspable
Translations
Every language
adj especially of depth: physically incapable of being measured — see also immeasurable
| Español | insondable |
|---|---|
| 日本語 | 計り知れない hakarishirenai |
| हिन्दी | अथाह athāh |
| Português | imperscrutável, insondável |
| Français | insondable |
| Deutsch | unermesslich, unergründlich, abgrundtief |
| Italiano | abissale, insondabile |
| Română | insondabil |
| Русский | бездо́нный bezdónnyj, измери́мый izmerímyj, неизмери́мый neizmerímyj |
adj impossible to grasp the extent of, or to fully know or understand
| 日本語 | 不可思議 fukashigi, 不思議 fushigi, 理解できないほど rikai dekinai hodo, 幽玄 yūgen |
|---|---|
| 中文 | 高深莫測 /高深莫测 gāoshēnmòcè, 莫測高深 /莫测高深 mòcègāoshēn, 深不可測 /深不可测 shēnbùkěcè, 玄虛 /玄虚 xuánxū, 幽邃 yōusuì |
| Português | incompreensível, insondável |
| Français | incompréhensible |
| Deutsch | unermesslich, unergründlich, unfassbar, unvorstellbar |
| Italiano | incomprensibile, imperscrutabile, insondabile |
| Ελληνικά | ανεξερεύνητος anexerévnitos, ανεξιχνίαστος anexichníastos |
| Română | de neînțeles, insondabil |
| Русский | непостижи́мый nepostižímyj |
| Tiếng Việt | bí hiểm |
Talk about this word "unfathomable." Wiktionary, via Micwyn, micwyn.com/word/unfathomable. Accessed 6 Nov. 2026. unfathomable. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/unfathomable "unfathomable." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/unfathomable.Cite this
@misc{unfathomable_2026,
title = {unfathomable},
howpublished = {Wiktionary, via Micwyn},
year = {2026},
url = {https://micwyn.com/word/unfathomable},
urldate = {2026-11-06}
}
