Select the most appropriate synonym of the given word.
ostentatious

To find the most appropriate synonym for the word ostentatious, let us break down its meaning and examine the given options:

1. Ostentatious is an adjective used to describe something that is characterized by vulgar or pretentious display, designed to impress others or attract notice. It refers to something that is intended to be seen and admired, often in a boastful or flashy manner.

2. Let us analyze the provided options:
- showy: This means making a conspicuous, pretentious, or flashy display. This aligns perfectly with the definition of ostentatious.
- tasteful: This means showing good aesthetic judgment or appropriate behavior, which is the opposite of being ostentatious.
- sudden: This refers to something happening or done quickly and unexpectedly.
- quick: This means moving fast or doing something in a short time.

Therefore, the word that is closest in meaning to "ostentatious" is showy.