If "profound" means deep, insightful, or meaningful:
* Superficial: Lacking depth or substance
* Trivial: Unimportant or insignificant
* Shallow: Lacking intellectual depth or understanding
* Simple: Easy to understand or lacking complexity
If "profound" means intense or strong:
* Mild: Not intense or strong
* Weak: Lacking strength or power
* Superficial: Not affecting you deeply
* Fleeting: Passing quickly or not lasting
If "profound" means causing a strong feeling or effect:
* Neutral: Having no effect or causing no feeling
* Indifferent: Having no interest or concern
* Unmoving: Not causing any emotional reaction
* Insignificant: Not having any importance or impact
Ultimately, the best opposite for "profound" depends on the specific meaning you're trying to convey.