unfathomable

adjective/ʌnˈfæðəməbəl/

Frequency rank: #14,273 most common English word

Meaning

Too deep, vast, or complex to be fully understood or measured.

Illustration for the English word “unfathomable”

Example sentence

The ocean's depth was unfathomable to the early explorers who had no modern equipment.

Synonyms & related words

Practice this word in the quiz

More words in ranks 14,201–14,300