Incorrect spelling, explanation: succesfull is the misspelled form of the word successful. Successful is an adjective created from the verb success. To create this adjective, we have to add the suffix -ful to the base verb success. Therefore, the correct spelling is successful and not succesfull, which has a redundant l at the end.

Correct spelling, explanation: successful is an adjective coming from the verb success. This adjective is created by adding the suffix -ful to the base success. In that process, we gain the correct spelling successful. Version succesfull is a misspelling because there is an additional l at the end, that is not a part of the suffix.

Definition of successful:
adjective: achieving success, an achievement or a plan, obtaining wealth or favorable outcome;
Her debut novel was very successful, so the hopes for another were high.
His family was successful in the field of politics for a few generations, but he wanted to go another way.

Incorrect spelling

Incorrect spelling

Incorrect spelling

Incorrect spelling

Incorrect spelling