slow

adjective:moving or operating at a low speed; taking longer than expected
- The internet connection was slow all afternoon.
adjective:characterized by little activity or progress
- Her recovery was slow but complete.
verb:to reduce speed or cause something to move or progress more slowly
- The pilot slowed the plane before landing.
adverb:at a reduced speed; without haste
- Go slow on the icy bridge.
adjective:not quick to understand, think, or respond; taking more time than average to process ideas
- I am a little bit slow thinker. I would always run out of time during exams in school.