Curiosity
According to curiosity-drive theory, curiosity is a naturally occurring urge that must be satisfied, similar to how we satisfy hunger by eating or thirst by drinking.
| Astonishing | Hush-hush | Shocking |
| Backdoor | Illegal | Smuggled |
| Banned | Illusive | Sneak peek |
| Be the first | Incredibly | Spoiler |
| Become an insider | Insane | Strange |
| Behind the scenes | Insider | Stunning |
| Bizarre | Interesting | Supersecret |
| Black market | Invitation only | Thought-provoking |
| Blacklisted | Key | Top secret |
| Bootleg | Limited | Trade secret |
| Censored | Little-known | Unauthorized |
| Class full | Login required | Unbelievable |
| Classified | Lost | Uncharted |
| Closet | Members only | Unconventional |
| Concealed | Myths | Under the table |
| Confessions | Odd | Under wraps |
| Confidential | Off the record | Underground |
| Controversial | Off-limits | Undiscovered |
| Cover-up | On the QT | Unexplained |
| Covert | Outlawed | Unexplored |
| Crazy | Priceless | Unheard of |
| Cringeworthy | Private | Unique |
| Dark | Privy | Unlock |
| Elusive | Psycho | Unsung |
| Extraordinary | Remote | Untold |
| Eye-opening | Restricted | Unusual |
| Forbidden | Ridiculous | Wacky |
| Forgotten | Secret | Withheld |
| Hidden | Secrets | Zany |
| Hilarious | Shh! |