fundamental
/ˌfʌn.dəˈmɛn.t(ə)l/Forming the most important base of something. If you remove something fundamental, the whole thing breaks down. Often used in academic, scientific, or professional writing.
- Clean water is fundamental to human health.
- The report revealed a fundamental flaw in the design.
- Mutual respect is fundamental to any good relationship.
Usually used in the plural — 'the fundamentals.' This means the basic rules, facts, or skills that form the foundation of a subject or activity. You must know them before you can go further.
- Master the fundamentals of grammar before writing essays.
- The coach drilled his players on the fundamentals of defense.
- This course covers the fundamentals of economics.
Adinary Nuance
"Fundamental" is often swapped with "basic," "essential," or "core" — but they are not the same. "Basic" means simple or at the lowest level; it can sound informal or even dismissive ("that's so basic"). "Fundamental" is more formal and structural — it signals that something sits at the very root of a system, not just that it is easy or entry-level. "Essential" stresses that something cannot be left out, while "fundamental" stresses that something supports everything above it — like a foundation wall. In IELTS essays and academic writing, "fundamental" is almost always the stronger and more precise choice over "basic."
In other languages
- Vietnamese
- Cơ bản
- Spanish
- Fundamental
- Chinese
- 基本的
- Japanese
- 根本的な
- Korean
- 근본적인
Etymology
From Latin "fundamentum" (foundation), derived from "fundare" (to lay the base) and "fundus" (bottom). The word entered English in the late 15th century via Medieval Latin, and its academic weight has remained largely unchanged ever since.
Common phrases
Synonyms
Related words
Frequently asked questions
- What is the difference between 'fundamental' and 'basic'?
- 'Basic' means simple or at the lowest level, and it can sound informal or even dismissive in some contexts. 'Fundamental' is more formal and signals something is structurally important — it forms the root that everything else depends on. In academic writing like IELTS essays, 'fundamental' is the stronger and more appropriate choice.
- Is 'fundamental' formal or informal?
- 'Fundamental' sits firmly in the formal and academic register. It is very common in IELTS writing, research papers, reports, and professional discussions. In casual speech, 'basic' or 'key' would sound more natural.
- Can 'fundamental' be used as a noun?
- Yes — the plural form 'fundamentals' is a common noun meaning the essential principles or skills of a subject. For example: 'You need to learn the fundamentals of accounting before taking advanced courses.'
- What does 'fundamentally' mean?
- 'Fundamentally' is the adverb form. It means 'at the most basic or important level.' Example: 'The two plans are fundamentally different.' It is also used in academic writing to signal a deep, structural point.