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.
Bigamist IKR WHATT
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.
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,