Adjectives

Forming adjectives

Typical adjective endings

There is no general rule for forming adjectives. We know they are adjectives usually by what they do (their function) in a sentence. However, some word endings (suffixes) are typical of adjectives.

Some adjectives can be identified by their endings. Typical adjective endings include:

  1. -able/-ible understandable, capable, readable, incredible
  2. -al mathematical, functional, influential, chemical
  3. -ful beautiful, bashful, helpful, harmful
  4. -ic artistic, manic, rustic, terrific
  5. -ive submissive, intuitive, inventive, attractive
  6. -less sleeveless, hopeless, groundless, restless
  7. -ous gorgeous, dangerous, adventurous, fabulous

suffix

examples

-able-ible

comfortable, readable, incredible, invisible

-al-ial

comical, normal, musical, industrial, presidential

-ful

beautiful, harmful, peaceful, wonderful

-ic

classic, economic, heroic, romantic

-ical

aeronautical, alphabetical, political

-ish

British, childish, Irish, foolish

-ive, -ative

active, alternative, creative, talkative

-less

endless, motionless, priceless, timeless

-eous, -ious, -ous

spontaneous, hideous, ambitious, anxious, dangerous, famous

-y

angry, busy, wealthy, windy

Warning:

Adjectives ending in -ic and -ical often have different meanings:

The economic policy of this government has failed.

A diesel car is usually more economical than a petrol one.

Sometimes when adding these endings changes have to be made. Here are some rules for forming adjectives and their exceptions:

Add Exceptions Word Adjective
-al If ending with an ‘e‘, drop it Nature
Function
Natural
Functional
-y If ending with an ‘e‘, drop it Ice
Oil
Icy
Oily
-ful If ending with a ‘y‘, replace with an ‘i Beauty
Peace
Beautiful
Peaceful
-ous/-ious If ending with a ‘y‘, drop it Mystery
Danger
Mysterious
Dangerous
-ic If ending with a ‘y‘, drop it History
Rust
Historic
Rustic

Forming adjectives from nouns and verbs

Adjectives can be formed from different words. They can be formed from nouns:

Noun Adjective
accident accidental
danger dangerous
length long
star starry
wind windy

From verbs:

Verb Adjective
enjoy enjoyable
help helpful
obey obedient
play playful
talk talkative

Or even from other adjectives:

Adjective Adjective
comic comical
correct corrective
elder elderly
red reddish
sick sickly

Examples of forming adjectives

  1. Our house color is a kind of yellow. → We live in a yellowish house.
  2. He often acts like a child. → He often acts in a childish way.
  3. The event was a big success. → We enjoyed a successful event.
  4. We enjoyed the sound of the drum’s rhythm. → We enjoyed the drum’s rhythmic sound.
  5. She adopted a dog without a home. → She adopted a homeless dog.
  6. Look out, that plant is poison. → Look out for that poisonous plant.
  7. It looks like it will rain today. → It looks like we’ll have rainy weather today.
  8. She always acts with courtesy. → She always behaves in a courteous manner.
  9. Her hair is pretty. → She has the prettiest hair.
  10. We go for a walk each day. → We go for a daily walk.
Form and Function of Adjectives (Prev Lesson)
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