procrastination

As nouns the difference between focus and procrastination

is that focus is (countable|optics) a point at which reflected or refracted rays of light converge while procrastination is the act of postponing]], delaying or [[put off|putting off, especially habitually or intentionally.

As a verb focus

is to cause (rays of light, etc) to converge at a single point.

As nouns the difference between rationality and procrastination

is that rationality is quality or state of being rational; agreement with reason; possession of reason; due exercise of reason; reasonableness while procrastination is the act of postponing, delaying or putting off, especially habitually or intentionally.

As nouns the difference between procrastination and timewasting

is that procrastination is the act of postponing]], delaying or [[put off|putting off, especially habitually or intentionally while timewasting is the wasting of time; idleness or procrastination.

As an adjective timewasting is

being a waste of time; fruitless, unproductive.