1. Showing no tendency to expand
   "unexpansive bodies" 
2. Not given to high spirits or effusiveness
   "an unexpansive man"

See also: restrained

Antonym: expansive

• quartern
• quarters
• quarterstaff
• quartervine
• quartet
• quartette
• quartic
• quartic polynomial
• quartile
• quarto
• quartz
• quartz battery
• quartz clock
• quartz crystal
• quartz glass
• quartz lamp
• quartz mill
• quartz oscillator
• quartzite
• quartzose
• quasar
• quash
• quasi
• quasi contract
• quasi-NGO