No, it is not as addicting as nicotine. Nicotine is one of the three most addictive substances known: the other two being cocaine and heroin.
An honorable mention is alcohol: while not as addictive as Nicotine (almost everyone who uses nicotine becomes addicted, but alcoholism isn't nearly as widespread in regards to drinkers), the habit is
incredibly hard to kick if you do become an alcoholic. And dangerous as well--the DT's can and do kill. I had a sort-of-uncle (my cousins' grandfather, but through their father's side, to whom I'm not related by blood) who literally drank so hard for so long that quitting drinking would have been instant death even with medication. I also have a great grandmother to whom I
am blood related who actually died because her daughter forced her to stop drinking without easing her off (a neighbor had told her to give her a teaspoon of liquor a day; my grandmother, like so many people, didn't realize why and refused to do so. She felt guilty about it until the day she died.)
Probably a good idea to point out that Nicotine not only gets its hooks on you very quickly, but absolutely refuses to let go. Some people can quit cold turkey, but most can't. Caffeine isn't nearly as addicting, as it's easier to quit and it definitely doesn't cause the severe psychological problems quitting a nicotine habit causes. That said, quitting Caffeine
is hard, both because it can be addictive and because it's literally everywhere in society.
Unlike nicotine however, a lot of doctors recommend a moderate caffeine intake to help with weight loss. Both are stimulants, but caffeine is much easier to manage. These doctors however recommend it be taken as black coffee, which can be hard to pull off unless you either like very bitter hot beverages or have the skill, money, equipment and know-how to make a proper cup of coffee.