There is no one-size-fits-all answer to this question, as the level of professionalism associated with cold calling can vary depending on the context and approach. In general, however, cold calling can be seen as unprofessional if it's done in a way that is intrusive or disruptive. For example, if you're cold calling someone during their dinner hour, you're likely to come across as pushy and inconsiderate. On the other hand, if you take the time to research your potential customers and tailor your sales pitch to their specific needs, you may be seen as more professional.