richest

adjective

1. Wealthy: having a lot of money and possessions.
2. Having an intense fatty or sugary flavour.“a rich dish; rich cream or soup; rich pastry”
3. Plentiful, abounding, abundant, fulfilling.“a rich treasury; a rich entertainment; a rich crop”
4. Yielding large returns; productive or fertile; fruitful.“rich soil or land; a rich mine”