Intermediate (B1)
IPA: /nɒnˈprəʊtiːn/
KK: /nɑnˈproʊtin/
Definition
Referring to substances or compounds that do not come from proteins or are not made of proteins.
Example
Many nonprotein sources of energy are available for athletes.
Conversation

I heard that some snacks can be nonprotein alternatives for when you're hungry.

That's interesting! What kind of snacks are we talking about?

Things like fruit or certain types of crackers that don’t have protein in them.

Sounds good! I love having nonprotein options for a light snack.
Synonyms & Antonyms
Synonyms
aminoacidic
nonpeptide
nonamino
Antonyms
proteinaceous
peptide
amino
Definition
A substance or component that does not contain protein.
Example
Vitamins and minerals are examples of nonproteins that are essential for health.
Conversation

Have you ever researched nonprotein sources of nutrition?

Yeah, I read that there are many healthy options out there.

It's interesting how our bodies can get nutrients from nonprotein foods too.
Root Explanation
Nonprotein → It is formed from "non-" (meaning not) and "protein" (from Greek "proteios", meaning primary or of first importance). The word "nonprotein" refers to substances that are not proteins or do not contain protein.
Memory Tip
Think of 'non-' meaning 'not' and 'protein' being something essential for life. So, nonprotein means something that is not essential like protein.
Visually Confused Words
protein
nonsprouting
nonroutine
myoprotein
azoprotein