The term "IST" can refer to various things depending on the context, such as "Indian Standard Time" or "Information Systems Technology." If you're referring to a specific "IST ending," please provide more context for an accurate response. Generally, an "IST" ending might pertain to the suffix used in adjectives related to a profession or ideology, like "artist" or "scientist."
optimist
scientist geologist
Feminist and finalist are 8 letter words. They end with the letters IST.
journalist dentist hypnotist stylist opptimist
The person is a cyclist.
Linguist
Pharmacologist, gynecologist, optometrist, therapist, psychiatrist, cardiologist, neurologist, etc.
A person who drives a car is commonly referred to as a motorist.
Pessimist - a person who habitually sees or anticipates the worst or is disposed to be gloomy.
Bigamist IKR WHATT
Fist, list, consist, missed, narcissist, (most things ending in "ist") And "ust"... Check the link...
pharmacist, nutritionist, pyshcologist, meteorologist, orthodontist , podiatrist, dentist, neurologist , scientist, anthropologist , podiatrist, pharmacologist,