(capable of) acting, moving etc taking a long time; (of a person) not able to understand or learn something quickly
unhurried, lazy
Cases of word usage
1) a very slow crawling movement (crawl)
2) to be slow and lazy (dawdle)
3) to cause (a person, vehicle etc) to be slow or late; (an instance of) delaying or being delayed (delay)
4) slow in doing things (dilatory)
5) not clear or bright; slow to understand; not exciting or interesting (dull)
6) slow and troublesome; not easy or natural (laboured)
7) to be late or slow in going away or finishing; stay at or near a place (linger)
8) slow and heavy; (of written style) serious and dull (ponderous)
9) (of a person, character) slow to express feelings or opinions; (of a seat in a train, room in a hotel etc) kept for a person's later use (reserved)
10) (of a person) slow or behind in (emotional, intellectual, physical ) development (retarded)