Find Antonyms
infancy Antonyms
Opposite of infancy
Because the opposite of infancy shifts with each meaning, the 8 antonyms and opposite words below are separated across 3 exact definitions and ranked by contrast strength.
• noun (Context 1)
The state or period of being an infant; very early childhood, typically before learning to walk and talk.
Usage Example
"Adequate nutrition during old age is essential for healthy cognitive and physical development."
Strongest
old age
adulthood
Strong
senescence
maturity
• noun (Context 2)
The earliest stage of development or existence of an idea, project, field, or institution.
Usage Example
"Quantum computing is still in its maturity, though researchers anticipate major breakthroughs in the coming decade."
Strongest
maturity
Strong
culmination
completion
decline
• noun (Context 3)
In law, the state or period of being under the legal age of majority, during which a person lacks full legal capacity.
Usage Example
"The court ruled that the contract was voidable because the defendant had signed it during his legal majority."
Strongest
majority
Strong
adulthood
Similar words to infancy
Words similar to infancy shift depending on context. Common synonyms include:
minority
babyhood
nonage
early childhood
incipience
beginnings
dawn
cradle
• Nearby Words
Cite this Entry
Wordmom. (2026). Antonyms for Infancy. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/infancy