Definitions

1. adjective

most unpleasantly showy or pretentious, or most common or widespread in a way that is unpleasantly showy or pretentious

“The tawdriest display of wealth at the party was the over-the-top diamond necklace.”

2. superlative

used to compare three or more things and indicate that one of them is the most extreme or most unpleasantly showy or pretentious

“The tawdriest of the three options was the one with the bright, flashing lights.”