abysmal

(əˈbɪzməl

)

adjective

1 immeasurable; very great ■ abysmal stupidity

2 informal extremely bad ■ an abysmal film

> aˈbysmally

adverb

abyssal

(əˈbɪsəl

)

adjective

1 of or belonging to the ocean depths, esp below 2000 metres (6500 feet) ■ abyssal zone

2 geology another word for plutonic