Unfathomable means impossible to understand or comprehend. When you say that something is unfathomable, you are saying that it is too complicated or too strange for you to understand.

  • The concept of reincarnation is unfathomable to me.

  • The math problem was too complex for me to solve, and so I turned to the teacher for help.

Definition of unfathomable


resembling an abyss in depth; so deep as to be unmeasurable


abysmal, abyssal


incapable of being fully understood


of depth; not capable of being sounded or measured

Nearby Words

unfathomable Pronunciation in a video

Example Sentences for unfathomable

  • 1

    WP works in mysterious and unfathomable ways.

  • 2

    It eliminates the feeling of unfathomable persecution

  • 3

    The consequences of being mistaken are unfathomable.

  • 4

    The meaning of this song's lyric is unfathomable.

  • 5

    At this point, it's nowhere in the article for reasons unfathomable.

  • 6

    The destruction would be unfathomable if the monster attacked.

  • 7

    To opt out of this arrangement is just unfathomable.

  • 8

    It is unfathomable to think about the impact of further cuts.

  • 9

    For some unfathomable reason, Jeremie is sitting on the railing.

  • 10

    For them, to opt out of this arrangement is just unfathomable.