imperseverant /im-pər-sevˈə-rənt/

1. Lacking the power to perceive
2. Lacking perseverance

• Jack-a-dandy
• jackal
• Jack-a-lantern
• Jack-a-Lent
• jackalled
• jackalling
• jackals
• jackanapes
• jackanapeses
• jackaroo
• jackarooed
• jackarooing
• jackaroos
• jackass
• jackasses
• jack bean
• jack beans
• jack-block
• jack-blocks
• jackboot
• jackbooted
• jackbooting
• jackboots
• jack-by-the-hedge
• jack-by-the-hedges