Select the most appropriate ANTONYM of the underlined word in the following sentence.

There are some technologies available today that make a notebook dispensable.

essential

The most appropriate antonym of the underlined word dispensable in the following sentence is essential.

• Dispensable means that something can be done without or that something is not necessary.
• Essential means that something is absolutely necessary or that something is of the utmost importance.
• Acceptable means that something is good enough or that something is not likely to cause offense.
• Urgent means that something needs to be done immediately or that something is very important.
• Popular means that something is liked or enjoyed by many people.