plentiful in number or quantity
copious - plentiful
If you have a ‘copious’ amount of something, then you have an abundance of it. The word implies that while the quantity may be more than sufficient, it is not excessive or impracticably too much. It can be used in a variety of different contexts, both positive and negative, and is often followed by the word 'amount(s)'.
I took copious amounts of notes during the meeting because I wanted to make sure that I didn't miss out on any important bits of information.
The copiousness of the alcohol consumed at the office Christmas party led to some rather debauched behaviour that drew the ire of upper management.
Anne was so devastated about missing out on her dream job that she wept copiously. I tried my best to console her.