Choose the correct antonym for the word 'Flagrant' from the options given below:-

The correct option is Unobtrusive.

1. Understanding the target word:
The word Flagrant is an adjective used to describe something that is glaring, conspicuously offensive, or obviously bad. If an action or behavior is flagrant, it is done openly and without any attempt to hide it (for example, a "flagrant disregard for the law").

2. Analyzing the options to find the opposite (antonym):
• Notorious: This means famous or well-known, typically for some bad quality or deed. This is related in tone to flagrant rather than opposite.
• Blatant: This means done openly and unashamedly, or completely lacking in subtlety. This is a close synonym of flagrant.
• Unobtrusive: This means not conspicuous or attracting attention; subtle and fits in without being noticed. Because this is the exact opposite of being glaringly obvious, it is the correct antonym.
• Adjacent: This means next to or adjoining something else, which is completely unrelated to the meaning of flagrant.

Conclusion:
Therefore, the correct antonym for Flagrant (highly conspicuous/glaring) is Unobtrusive (not conspicuous/subtle).