rough and ready
[ rʌf ən(d) ˈrɛdi ]
• crude but effective.
• "a rough-and-ready estimating method"
Similar:
basic,
simple,
crude,
unrefined,
unpolished,
unsophisticated,
makeshift,
make-do,
thrown together,
cobbled together,
provisional,
stopgap,
improvised,
extemporary,
hurried,
sketchy,
ad hoc,