Synonyms:
* Equipment: This is a general synonym, and often a more neutral one.
* Gear: This is another general synonym, often used for equipment used in a specific activity.
* Supplies: This implies items used for a specific purpose.
* Accessories: This implies items that are additional or optional.
* Appurtenances: This is a more formal synonym, often used in legal contexts.
* Trappings: This implies items associated with a particular lifestyle or status.
Antonyms:
* Essentials: This refers to items that are absolutely necessary.
* Necessities: This is similar to "essentials" and emphasizes the importance of the items.
* Basics: This implies the most important and fundamental items.
It's important to note that the best synonym or antonym for "paraphernalia" will depend on the specific context in which the word is used.