The organization's Japanese unit, referencing the enlivened film "Alice in Wonderland", took to online networking on Sunday with a message about the motion picture's understood "unbirthdays".
The first English tweet wished adherents an "exceptionally cheerful unbirthday".
In Disney's unique film, characters commend an "unbirthday" - each day of the year aside from their own particular birthday - amid a gathering with Alice.
Be that as it may, the Japanese tweet's wording deciphered as "a day of nothing" - and corresponded with remembrances for the more than 74,000 individuals killed when the US dropped a nuclear bomb on Nagasaki.
Disney immediately erased the tweet on Sunday, taking after a string of online feedback.
"We profoundly apologize for utilizing an unseemly expression that could pester individuals," it tweeted on Sunday.
Organization authorities couldn't be gone after remark on Monday.
The assault on Nagasaki came three days after American B-29 aircraft Enola Gay dropped a bomb, named "Young man", on Hiroshima, the first nuclear shelling ever.
The twin bombings were the last sections of World War II, with Japan surrendering on August 15, 1945. (AFP)
AFP