Here are examples of the word/phrase "sufficient" used in a sentence and paraphrased in a sentence...
The amount of food I ate is sufficient for today.
The amount of food I ate is enough for today.
I hope that my current level will be sufficient for winning this tournament.
I hope that my current level will be adequate for winning this tournament.
The boss doesn't need to use his full power. Fifty percent will be sufficient.
The boss doesn't need to use his full power. Fifty percent will be good enough.
Other Examples...