basic

basic — adjective

1. providing the main support or starting point that something else depends on

1.adjectiveB1
Definition

providing the main support or starting point that something else depends on

Example

After the flood, clean water and blankets were basic needs.

collocation: basic needs

The course teaches basic rules before students write full essays.

Common collocations
  • basic need
  • basic right
  • basic rule
  • basic skill
  • basic to survival
Synonyms
  • fundamental

    more formal but very close in meaning

  • essential

    stresses that something cannot be left out

  • central

    focuses on importance within a system or discussion

Antonyms
  • secondary

    less important and not part of the main support

  • peripheral

    outside the main or necessary part

Grammar Patterns

basic to something

basic needs

basic skills

Usage Note

Often appears with nouns such as need, right, rule, and skill. Distinguish from sense 2, which is about easy or first-stage versions rather than importance.

Common Mistakes

Sleep is basic for health.
Sleep is basic to health.
when something is essential to another thing, basic often takes to.

2. at an easy, early, or reduced level, without advanced features

2.adjectiveB1
Definition

at an easy, early, or reduced level, without advanced features

Example

The app gives beginners a basic plan for each day.

basic + noun for a simple version

Before art school, Mia took a basic drawing course.

Common collocations
  • basic course
  • basic model
  • basic information
  • basic plan
  • basic training
Synonyms
Antonyms
  • advanced

    at a higher and more difficult level

  • complex

    containing more parts or difficulty

Grammar Patterns

basic + noun

a basic version

basic English / math / plan

Usage Note

Usually describes beginner-level lessons, simple equipment, or stripped-down versions of something. Distinguish from sense 1: this sense is about difficulty and detail, not what is most important.

Common Mistakes

This is a basis course.
This is a basic course.
basis is a noun, but basic is the adjective for an easy first-level course.

3. plain and unexciting, in a way that feels too common to impress people

3.adjectiveC1
Definition

plain and unexciting, in a way that feels too common to impress people

Example

Her outfit looked basic beside the dancers' bright stage clothes.

informal negative comment on style

On TikTok, users called the beige kitchen basic and forgettable.

Common collocations
  • basic outfit
  • basic design
  • basic playlist
  • look basic
  • feel basic
Synonyms
  • plain

    describes something with little decoration or interest

  • ordinary

    neutral or mildly negative, with nothing special

  • dull

    stronger and more clearly negative

Antonyms

Grammar Patterns

look basic

sound basic

a basic design

Usage Note

Common in informal comments about fashion, taste, playlists, or design, and it usually carries criticism. Distinguish from sense 2, which can be neutral and simply mean easy or first-level.

Common Mistakes

The room was basic' when you mean 'simple but useful.
The room was simple but useful.
sense 3 is usually negative and suggests something is dull or unoriginal.

4. describing the amount of pay someone gets before bonuses, overtime, or other ext

4.adjectiveC1
Definition

describing the amount of pay someone gets before bonuses, overtime, or other extra money

Example

Her basic pay rose in April, before any sales bonus.

basic pay before extras

At orientation, the contract listed basic pay and meal money separately.

Common collocations
  • basic pay
  • basic salary
  • low basic pay
  • increase basic pay
  • basic rate of pay
Synonyms
  • base

    used in compounds such as base salary

  • fixed

    stresses that the amount does not include variable extras

Antonyms
  • overtime

    extra money earned for extra hours, not the starting rate

  • bonus

    additional pay beyond the fixed amount

Grammar Patterns

basic pay

basic salary

Usage Note

Almost always appears before pay or salary in contracts, job ads, and payroll discussions. The focus is the fixed starting amount, not the total amount a worker finally receives.

Common Mistakes

My bonus is part of my basic pay.
My bonus is added to my basic pay.
basic pay is the amount before extra payments.

5. used for a substance that acts like a base in chemistry, usually with a pH above

5.adjectiveC2
Definition

used for a substance that acts like a base in chemistry, usually with a pH above seven

Example

Soap is basic, so it turns red test paper blue.

basic contrasted with test result

The lab marked the liquid basic after the pH test.

mark something basic

Common collocations
  • basic solution
  • basic substance
  • basic liquid
  • slightly basic
  • strongly basic
Synonyms
  • alkaline

    the more common everyday science word

  • caustic

    stronger and often suggests a substance that can burn or damage

Antonyms
  • acidic

    having the qualities of an acid

Grammar Patterns

be basic

basic solution

basic liquid

Usage Note

Common in chemistry, especially with words like solution, liquid, and pH, and often contrasted with acidic. In general science writing, alkaline is often the more usual everyday synonym.

Common Mistakes

The liquid is base.
The liquid is basic.
base is usually the noun, while basic is the adjective in this chemistry sense.

6. describing igneous rock that is low in silica and rich in iron and magnesium

6.adjectiveC2
Definition

describing igneous rock that is low in silica and rich in iron and magnesium

Example

The chart labels this dark lava rock basic, not acidic.

basic rock in geology

Geologists call basalt basic because it contains little silica.

pattern: call something basic

Common collocations
  • basic rock
  • basic lava
  • basic igneous rock
  • chemically basic rock
Synonyms
  • mafic

    technical geology term that strongly overlaps with this idea

  • low-silica

    describes the composition more directly

Antonyms
  • acidic

    used in geology for rock with higher silica content

Grammar Patterns

basic rock

be basic

Usage Note

Restricted to geology and usually used with rock or in descriptions of basalt-like material. Distinguish from sense 5, which is the chemistry use for substances with alkaline behavior.

basic — noun

Word family

Synonym discussion

Sense: adjective/1

For sense 1, basic points to the part that supports everything else. Fundamental is close, but it sounds more formal and often appears in academic or serious discussion. Essential is stronger: it suggests something is absolutely needed, not just part of the foundation. Elementary usually moves away from this sense and points to beginner level, so it often fits sense 2 instead. Simple also often belongs with sense 2 because it describes low difficulty, not central importance. A basic rule is one you build on; an essential rule is one you cannot ignore. A basic skill may be the first step, while a simple skill may just be easy.

Common collocations

Adverbs

  • very basic
  • fairly basic

Phrases

  • the basics of
  • at a basic level

Prepositions

  • basic to

Etymology

GreekLatinFrenchEnglish

Basic was formed in English from base plus the ending -ic. Base came through French and Latin from Greek basis, a word for something that stands underneath, like a pedestal or foundation. That older image of support still shapes the modern word: basic can mean the main supporting part, an early or reduced form, and in science something related to a base.