- 1 not moving, acting or done quickly; taking a long time; not fast a slow driver Progress was slower than expected. The country is experiencing slow but steady economic growth. Collecting data is a painfully slow process. a slow, lingering death Oh you're so slow; come on, hurry up! The slow movement opens with a cello solo. She gave a slow smile. Average earnings are rising at their slowest rate for 20 years.
- 2 not going or allowing you to go at a fast speed I missed the fast train and had to get the slow one (= the one that stops at all the stations). with delay
- 3 hesitating to do something or not doing something immediately slow to do something She wasn't slow to realize what was going on. slow in doing something His poetry was slow in achieving recognition. slow doing something They were very slow paying me. not clever
- 4 not quick to learn; finding things hard to understand He's the slowest in the class. See related entries: Stupid not busy
- 5not very busy; containing little action synonym sluggish Sales are slow (= not many goods are being sold). There are slow passages in which little happens, but they help to build up the suspense. watch/clock
- 6[not before noun] showing a time earlier than the correct time My watch is five minutes slow (= it shows 1.45 when it is 1.50). in photography
- 7slow film is not very sensitive to light Word Origin Old English slāw ‘slow-witted, sluggish’, of Germanic origin.Extra examples Filming was painfully slow. Genetic evolution is necessarily slow. He was noticeably slow to respond. I was considerably slower than the other drivers. My computer is noticeably slower than before. She is showing a slow and steady improvement in her reading ability. They are extremely slow at reaching decisions. I missed the fast train and had to get the slow one. Oh you’re so slow; come on, hurry up! She wasn’t slow to realize what was going on. We drove in the slow lane. a slow driver/walker/readerIdioms (informal) to be quick/slow to understand something Is he always this slow on the uptake? (North American English, informal) to slowly get angry See related entries: Anger fast/slow in reacting to a situation If you’re quick off the mark in answering these questions, you could win a prize.