American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Of or relating to infants or infancy.
- adj. Displaying or suggesting a lack of maturity; childish: infantile behavior; an infantile remark.
Century Dictionary and Cyclopedia
- Of or belonging to infants or little children; pertaining to or characteristic of infancy or an infant.
- Of the character of an infant; infant-like.
- In geology, of a land form, having been subjected to the processes of erosion, in its present relation to base-level, for a very short lime.
GNU Webster's 1913
- adj. Of or pertaining to infancy, or to an infant; similar to, or characteristic of, an infant; childish.
- adj. indicating a lack of maturity
- adj. of or relating to infants or infancy
- adj. being or befitting or characteristic of an infant
- Middle English infantil, from Latin īnfantīlis, from īnfāns, īnfant-, infant; see infant. (American Heritage® Dictionary of the English Language, Fourth Edition)
“He said, "I state my belief that the precipitating factor in infantile autism is the parents wish that the child should not exist.”
“Anytime they post and insult, and then respond to someone poking fun at them by calling the person infantile, is too good a chance to pass up.”
“Saying that it's God's fault he's infantile is just taking a cheap shot because it takes responsibility away from Adam - you ate the apple.”
“His methods, roundly disproved today, were based on the belief that 'the precipitating factor in infantile autism is the parent's wish that the child should not exist'.”
“Tolpin 1970 restricted the definition of infantile neurosis to the repressed conflicts of the phallic-oedipal phase, for patients whose early development has been normal.”
“In 1956, Rolf Kostmann, a Swedish pediatrician, described an autosomal recessive disorder that he called infantile genetic agranulocytosis - which is now called severe congenital neutropenia.”
“Despite the use of the word infantile, supposedly healthy adults could be stricken with the polio virus.”
“The use of the word infantile implied this disease only involved children and it always resulted in paralysis.”
“The inability of adults to remember the earliest years of childhood—also known as infantile amnesia—has been the subject of speculation for more than a century.”
“Relationships were best described as infantile, with a prevalence of merger and fusion fantasies.”
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