How to spell SADASTIC correctly?

It is possible that the intended word was "sadistic", meaning pleasure derived from causing pain. Other possible suggestions may include "sardonic", meaning mocking or cynical or "satisfactory", meaning sufficient or acceptable. It ultimately depends on the context in which the misspelling was used.

• sadistic The serial killer's sadistic tendencies were evident in the cruel and torturous methods he used to murder his victims.
• sarcastic She responded to his compliment with a sarcastic remark.
• spastic My spastic sister always needs to be reminded to use a wheelchair.

Intertubing

• antedating
• entertain
• entertainer
• entertaining
• inditing
• inner-tubing
• intertwine
• interurban
• intuiting
• undertaking