l)adj.1.a. Of, relating to, engaged in, or suitable for a profession: lawyers, doctors, and other professional people. b. Conforming to the standards of a profession: professional behavior.
2. Engaging in a given activity as a source of livelihood or as a career: a professional writer. 3. Performed by persons receiving pay: professional football. 4. Having or showing great skill; expert: a professional repair job.
n.1. A person following a profession, especially a learned profession. 2. One who earns a living in a given or implied occupation: hired a professional to decorate the house. 3. A skilled practitioner; an expert.
professional[prəˈfɛʃən[SUP]ə[/SUP]l]adj1. of, relating to, suitable for, or engaged in as a profession 2. engaging in an activity for gain or as a means of livelihood 3. extremely competent in a job, etc. 4. undertaken or performed for gain or by people who are paid
n1. (Business / Professions) a person who belongs to or engages in one of the professions 2. a person who engages for his livelihood in some activity also pursued by amateurs 3. a person who engages in an activity with great competence 4. (General Sporting Terms) an expert player of a game who gives instruction, esp to members of a club by whom he is hiredprofessionallyadv
adj.1. following an occupation as a means of livelihood. 2. pertaining to a profession. 3. appropriate to a profession: professional objectivity. 4. engaged in one of the learned professions, as law or medicine. 5. following as a business something usu. regarded as a pastime: a professional golfer. 6. making a constant practice of something: A salesman has to be a professional optimist. 7. engaged in for competitive gain: professional baseball. 8. of or for a professional person or such a person's place of business: a professional apartment. 9. done by a professional; expert: professional car repairs. n.10. a member of a profession, esp. one of the learned professions. 11. a person who earns a living in a sport or other occupation frequently engaged in by amateurs. 12. a person who is expert at his or her work.
Well... in my opinion, being an photographer but was unprofessional, I think we need to come up with assumption that the photographer is earning a profession by taking photographs (of any genre) and also maybe giving advises and consultation to other people (in regards to photography). However, he/she was not too ethical in his/her approach, gave wrong advises, being late for projects, doesn't dress to the occassion when doing a paid job, being sloppy in his work, give half-fxxk result for his work. well... that is unprofessional photographer.
Other people who know nothing but think he/she know the world and attempt to give advises (bad advices, or totally wrong advises) is at most acting smart and is truely irritable. Copying others' work or claiming credit for other people's hardwork is in a sense unprofessional (as in unethical approach to work) but can also be seen as cheating his/her clients and can be sued.
Of course lar. Where got people who are earning some cash or their living with photography, tell you that they are unprofessional (unless they try to dig their own grave). And those that never told you might be because they are not professional... just hobbyist like myself. And being a hobbyist and not professional are not the same as unprofessional.
In general, unprofessional behavior or unprofessional acting refers to violating coded or commonly agreed / commonly expected conduct.
It is not about whether somebody actually makes a living out of the activity, although it is somewhat implied as reference for the expected conduct.