Definition of infantine in US English:



  • archaic term for infantile
    • ‘Even when we have relinquished this infantine period, we are seldom left destitute of religious instruction.’
    • ‘From that point, what he described as his ‘primitive and infantine feeling’ faded and his work became more conventional.’
    • ‘They play no part in the celestial symphony; nor are they capable of more than merely infantine enjoyment.’
    • ‘Breast-feeding could lead to ‘infantine debility which might lead to curvature of the spine, or intestinal diseases, where the addition to, or total substitution of, an artificial… aliment’ would help.’
    • ‘If she before, by her infantine caresses, had gained his affection, now that the woman began to appear, she was still more attaching as a companion.’


Early 17th century: from obsolete French infantin, variant of Old French enfantin, from Latin infans, infant- (see infant).