immeasurable; very great extremely bad
WordReference Random House Learner's Dictionary of American English © 2025
a•bys•mal /əˈbɪzməl/USA pronunciation
adj.
WordReference Random House Unabridged Dictionary of American English © 2025- of or like an abyss:abysmal depths.
- extremely bad or severe:abysmal weather.
a•bys•mal
(ə biz′məl),USA pronunciation adj.
a•bys′mal•ly, adv.
- of or like an abyss;
immeasurably deep or great. - extremely or hopelessly bad or severe:abysmal ignorance; abysmal poverty.
- abysm + -al1 1650–60
Collins Concise English Dictionary © HarperCollins Publishers::
'abysmal' also found in these entries (note: many are not synonyms or translations):