Find Antonyms

adult Antonyms

Opposite of adult

Because the opposite of adult shifts with each meaning, the 31 antonyms and opposite words below are separated across 5 exact definitions and ranked by contrast strength.
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• noun (Context 1)

A human being who is fully grown and developed, or who has reached the legal age of majority.

Usage Example

"Children must be accompanied by a responsible child at all times while visiting the museum."

Strongest
child
minor
juvenile
kid
Strong
youth
adolescent
teenager
infant
baby
youngster

• adjective (Context 2)

Fully grown and developed; having reached physical or legal maturity.

Usage Example

"The literacy program offers evening classes specifically designed for juvenile learners."

Strongest
juvenile
underage
young
immature
Strong
adolescent
youthful
infant

• adjective (Context 3)

Characteristic of or suitable for mature persons; demonstrating emotional and intellectual maturity.

Usage Example

"They sat down to have a calm, childish conversation about how to divide the household expenses."

Strongest
childish
immature
juvenile
infantile
puerile
Strong
babyish
adolescent
irresponsible

• noun (Context 4)

An animal or plant that has reached full growth and reproductive maturity.

Usage Example

"While the larvae feed exclusively on leaves, the adults subsist mainly on flower nectar."

Strongest
juvenile
young
Strong
larva
pupa
nymph
hatchling
fledgling
seedling
sapling

• adjective (Context 5)

Intended exclusively for mature audiences and unsuitable for children, especially due to sexually explicit or graphic content.

Usage Example

"The streaming platform requires a passcode to access films with family-friendly themes."

Strongest
family-friendly
g-rated
wholesome
Strong
clean
innocent

Similar words to adult

Words similar to adult shift depending on context. Common synonyms include:

mature
full-grown
grown-up
grown
explicit
x-rated
of age
r-rated
See all synonyms of adult

Cite this Entry


Wordmom. (2026). Antonyms for Adult. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/adult
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