1. (informal) no longer maintaining contact or communication 
2. (informal) no longer up to date; not well informed with recent developments

Encyclopedia: Out of touch

• transmundane
• transmutability
• transmutable
• transmutation
• transmute
• transnational
• transoceanic
• transom
• transom window
• transonic
• transorbital lobotomy
• transpacific
• transparence
• transparency
• transparent
• transparent gem
• transparent quartz
• transparent substance
• transparently
• transparentness
• transpirate
• transpiration
• transpire
• transpiring
• transplacental