Wiktionary (0.00 / 0 votes) Rate this definition: ignorant (Adjective). Unknowledgeable or uneducated; characterized by ignorance. ignorant (Adjective). Ill-mannered, crude. His manner was at best off-hand, at worst totally ignorant.
1 Megabyte (MB), a measure of amount of information used, for example, to quantify computer memory or storage capacity. 2  Megabit (Mb, or properly: Mbit), a measure of amount of information.  MikroBitti (formerly MB), a Finnish computer magazine.
an MB, which typically stands for Megabyte is larger than a KB, which typically stands for Kilobyte. These are metric names, signifying 1 Million bytes and 1 Thousand bytes respectively. Be careful, however, as most internet connections are based on MegaBits (or kilobits) and not Megabyte.