Tra từ sad - Từ điển Oxford Advanced Learner 8th

sad [sad sadder saddest] BrE [sæd] NAmE [sæd] adjective (sad·der, sad·dest)

UNHAPPY
1. unhappy or showing unhappiness
•~ (to do sth) We are very sad to hear that you are leaving.
•~ (that…) I was sad that she had to go.
•~ (about sth) I felt terribly sad about it.
•She looked sad and tired.
•He gave a slight, sad smile.
•The divorce left him sadder and wiser (= having learned from the unpleasant experience).
2. that makes you feel unhappy
•a sad story
•~ (to do sth) It was sad to see them go.
•~ (that…) It is sad that so many of his paintings have been lost.
•We had some sad news yesterday.
•He's a sad case— his wife died last year and he can't seem to manage without her.
•It will be a sad day for all of us if the theatre is forced to close.
•Sad to say (= unfortunately) the house has now been demolished.

UNACCEPTABLE
3. unacceptable; deserving blame or criticism
Syn: ↑deplorable
•a sad state of affairs
•It's a sad fact that many of those killed were children.
•It's a sad reflection on life that it takes danger and suffering to bring people closer together.

BORING
4. (informal)boring or not fashionable
•You sad old man.
•You'd have to be sad to wear a shirt like that.

IN POOR CONDITION
5. in poor condition
•The salad consisted of a few leaves of sad-looking lettuce.
see also ↑sadly, ↑sadness

Word Origin:
Old English sæd ‘sated, weary’, also ‘weighty, dense’, of Germanic origin; related to Dutch zat and German satt, from an Indo-European root shared by Latin satis ‘enough’. The original meaning was replaced in Middle English by the senses ‘steadfast, firm’ and ‘serious, sober’, and later ‘sorrowful’.

Thesaurus:
sad adj.
1.
•I felt so sad that she had to go.
unhappy • • miserable • • gloomy • • glum • • depressed • • heartbroken • |informal down • |especially written mournful • • despondent • |literary melancholy •
Opp: happy
sad/unhappy/miserable/gloomy/glum/depressed/heartbroken/despondent about sth
sad/unhappy/miserable/depressed/heartbroken when/that…
feel sad/unhappy/miserable/gloomy/depressed/despondent
look sad/unhappy/miserable/mournful/gloomy/glum/depressed
Sad or unhappy? You usually feel unhappy about sth that has happened to you; you feel sad about sth that has happened to sb else. A period of your life can be unhappy; sth that you see or hear can be sad
•an unhappy childhood
• sad news
2.
•The sad truth is, he never loved her.
pathetic • • painful • • upsetting • • distressing • • tragic • • heartbreaking •
sad/painful/upsetting/distressing/tragic/heartbreaking for sb
sad/painful/upsetting/heartbreaking to do sth
a sad/pathetic/tragic/heartbreaking story

Example Bank:
•I called Mum, sounding all sad and pathetic.
•It would be a pretty sad individual who didn't feel that they were unique.
•She was still feeling very sad about her father's death.
•This music always makes me sad.
•a deeply sad occasion
•a rather sad story
•an extremely sad story
•He's a sad case— his wife died last year and he can't seem to manage without her.
•I find it sad that our open spaces are disappearing.
•It is sad that so many of his paintings have been lost.
•It was sad to see them go.
•It's a sad fact that many of those killed were children.
•It's a sad reflection on life that it takes danger and suffering to bring people closer together.
•It's a terribly sad story.
•Sad to say the house has now been demolished.
•The divorce left him sadder and wiser.
•The sad truth is, he never loved her.
•This sad state of affairs does not have to continue.
•We are sad to hear that you are leaving.