re·li·able 
/rɪˈlajəbəl/ adjective
/rɪˈlajəbəl/ adjective [more reliable; most reliable] 1 : able to be trusted to do or provide what is needed : able to be relied on
▪ a reliable car ▪ a reliable source of safe drinking water [=a way to get safe drinking water every time you need it] ▪ He's not very reliable. You can't always count on him to do what he says he'll do. 2 : able to be believed : likely to be true or correct
▪ a reliable witness ▪ It's a rumor, but I heard it from a reliable source. [=someone who is likely to have accurate information] ▪ We can't write a report without reliable data. ▪ We need more reliable information before we can take action.
▪ a reliable car ▪ a reliable source of safe drinking water [=a way to get safe drinking water every time you need it] ▪ He's not very reliable. You can't always count on him to do what he says he'll do.
▪ a reliable witness ▪ It's a rumor, but I heard it from a reliable source. [=someone who is likely to have accurate information] ▪ We can't write a report without reliable data. ▪ We need more reliable information before we can take action.
— re·li·abil·i·ty /rɪˌlajəˈbɪləti/ noun [noncount]
▪ These cars are known for their reliability.
/rɪˌlajəˈbɪləti/ noun [noncount] ▪ These cars are known for their reliability.
— re·li·ably /rɪˈlajəbli/ adverb
▪ How can I get my computer to work reliably? ▪ Few analysts can reliably estimate corporate profits.
/rɪˈlajəbli/ adverb ▪ How can I get my computer to work reliably? ▪ Few analysts can reliably estimate corporate profits.
