inadvisable /in-ad-vīˈzə-bl/

1. Not advisable, unwise
2. Another form of unadvisable which is still the form preferred by some

• nightmarish
• nightmarishly
• nightmarishness
• nightmarishnesses
• nightmary
• night-men
• night-night
• night nurse
• night nurses
• night out
• night outs
• night owl
• night owls
• night-palsy
• nightpiece
• nightpieces
• night-porter
• night-porters
• night-rail
• night-rails
• night-raven
• night-ravens
• night-rest
• night-rests
• nightrider