The 2014 Australian Open finalist left nothing in reserve in her criticism of the tennis glamour girl, saying she hasn't been missed since being placed on provisional suspension.
"I was surprised that most of the reactions were so diplomatic, because everyone's opinion is actually totally different," said Cibulkova, according to a translation of the interview shared by several media outlets.
"I didn't make any statement, as I didn't want to be the only person to openly say what they think about this case. I will only say that I don't feel sorry at all for Sharapova and I don't miss her on the tour.
"She's a totally unlikeable person. Arrogant, conceited and cold. When I sit beside her in the locker room, she won't even say hello."
The World No. 53's dagger backs up recent comments from 18-time Grand Slam champion and ESPN analyst Chris Evert, who said: "Maria Sharapova has always isolated herself from the rest of the tennis world, from the players. She doesn't have a lot of close friendships on the tour."
A former coach of a top 10 player also anonymously told the New York Post Sharapova "definitely doesn't seem to have any friends on tour".
"She is very cold. When Maria walks into (the players' lounge), things will stop midsentence," the strength coach said.
"Her camp (coaches, trainers, assistants) and even (now-ex-boyfriend tennis pro) Grigor Dimitrov would be chatting with everyone, and when (Sharapova) would walk in, Grigor and her coach would make eye contact and know to stop socialising. It became a joke among everyone (in pro tennis)."
Positive meldonium tests continue to rock Russian sports. Four judokas are the latest athletes to test positive for the banned substance, local media reported on Monday.
An unnamed source told TASS news agency that the four judokas are the 2012 world champion Mikhail Pulyaev, Denis Yartsev, Natalia Kondratieva and Yekaterina Valkova.
The country's judo federation, however, refused to comment on the case or name any athletes who had tested positive for the banned medicine.
Meldonium - an endurance-boosting drug that is used to treat heart trouble - was added to the list of banned substances on January 1, 2016.
Since then, a string of high-profile Russian athletes, including Olympic swimmer Yulia Efimova, speedskaters Semyon Yelistratov and Pavel Kulizhnikov have all admitted to testing positive for the drug.
Russian sports minister Vitaly Mutko has said some 30 athletes in the country had tested positive for meldonium since it was banned.
Russia's scandal-ridden athletics federation - suspended in November after a WADA independent commission found evidence of state-sponsored doping in Russian track and field - last month announced four meldonium cases among its athletes.
Moscow has vowed to reform its anti-doping programme in time for its track and field stars to compete at the Rio de Janeiro Olympics in August.
- news.com.au with additional reporting from AFP
