"Baseless criticism" refers to negative comments or judgments that are without any real evidence or justification. It means that the criticism is not supported by facts or reasons, therefore it lacks credibility or validity. Full definition
More to that, several analysts and news publications including Zerohedge have reported that the recent price correction of bitcoin can be attributed to JPMorgan CEO Jamie Dimon's baseless criticism of bitcoin and its lack of intrinsic value. (dailybitcoinnews.com)
Former President Kufuor has described as baseless criticisms from his predecessor, Jerry John Rawlings, that he demeaned the legacy of Ghana's first President, Dr Nkrumah, during his tenure. (ghanapoliticsonline.com)
Once Ruffalo accepted the part and came aboard the cast of the star - studded «The Avengers,» he had to hold up the usual fanboy onslaught, much of it the same kinds of relatively baseless criticisms his own cast mates Chris Evans, Chris Hemsworth and Robert Downey Jr. faced when they were first cast as superheroes. (indiewire.com)