glass half full/half empty

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Also found in: Acronyms.

(see the) ˌglass half ˈfull/half ˈempty

used to describe whether somebody has a positive or negative attitude towards something: People are prepared to see the glass half full at the moment rather than half empty.He’s a glass-half-full type of guy (= he always expects good things to happen).
See also: empty, full, glass, half