Memorable means worth remembering, and hard to forget. A memorable evening, memorable for the wrong reasons, a memorable line.
It usually implies pleasure, though memorable for the wrong reasons is a standard dry joke. What makes something memorable is mostly emotion and surprise: the brain keeps what startled it and discards the rest, however important the rest was.
1adjectivememorableWorth remembering, and hard to forget.
“Our trip to the mountains was the most memorable holiday we've ever had.”
memorable is a quality.
Latin memorabilis comes from memorare, to bring to mind, from memor, mindful. Memory is a relative.
Proto-Indo-European
*(s)mer-
Latin
memorābilis
Middle English
memorable
English, today
memorable
Built from
From Middle English memorable, memorrable, from Latin memorābilis, from memorō (“to bring to remembrance”), from memor (“mindful, remembering”). by surface analysis, memory + -able, see memory. a doublet of memorabile (singular of memorabilia).
Etymology from Wiktionary, CC BY-SA