Upper-Intermediate (B2)
IPA: /ɪˈnjuːməreɪt/
KK: /ɪˈnuːməˌreɪt/
Definition
Not having the ability to understand or work with numbers and mathematical concepts.
Example
Many people feel innumerate when faced with complex statistics.
Conversation

I found out that many people are still innumerate when it comes to basic math skills.

Really? That's surprising in this day and age.

Yeah, it makes me think about how important math education is for everyone.

Definitely! We need to help those who feel innumerate to improve their skills.
Synonyms & Antonyms
Synonyms
illiterate
uneducated
ignorant
Antonyms
literate
educated
knowledgeable
Definition
A person who does not understand basic math or numbers.
Example
Many people in the community are considered innumerate, struggling with simple calculations.
Conversation

I was helping my little brother with his homework, and it made me realize he's kind of an innumerate when it comes to math.

Really? What do you mean by that?

He just struggles to grasp the basic concepts, like addition and subtraction.
Root Explanation
Innumerate → It is formed from "in-" (meaning not) and "numerare" (meaning to count). The word "innumerate" refers to someone who is not able to count or lacks numerical understanding.
Memory Tip
Think of 'not' ('in-') being able to 'count' ('numerare') — that's why innumerate means someone who cannot count.
Visually Confused Words
numerate
connumerate
inumbrate
innervate
enumerate
unenumerated
renumerate
numerative