man-child
noun[C]
usuallydisapproving(alsomanchild)uk/ˈmænˌtʃaɪld/us/ˈmænˌtʃaɪld/anadultman who does notbehavein thecalm,serious, orsensibleway that you wouldexpectfrom someone of hisage:
Her fiance isportrayedas afecklessman-child.
When his firstchildwasborn, thejealousmanchildlefthome.
- Theydescribedhim as aplayful,quietman-child withtremendousdrive.
- Tocallhim a man-child giveschildrenabadname.
- They aren'tgrown-upsbut man-children who areafraidorunabletocommittorelationships.
Physically and mentally mature & immature
- adult
- adulting
- ageing
- babyish
- childish
- grown up
- immature
- immaturity
- infantile
- juvenile
- mature
- maturity
- overgrown
- petulance
- petulant
- petulantly
- post-adolescent
- puerility
- sophomoric
- young at heartidiom