upset

upset, agitate, disturb, perturb

这些动词均有“使不安，使心烦意乱”之意。
upset: 最普通，最通俗用词，侧重失去精神上的平静，心理上完全丧失平衡。
agitate: 侧重指内心的焦虑，难于控制，表露于外。
disturb: 指因某人的行动、扰乱、妨碍安静等而使人不得安宁。
perturb: 书面语用词，指使人焦急烦恼，扰得心情不安。

名词 upset:

1. an unhappy and worried mental state
   同义词：disturbance, perturbation
2. the act of disturbing the mind or body
   同义词：derangement, overthrow
3. condition in which there is a disturbance of normal functioning
   同义词：disorder
4. a tool used to thicken or spread metal (the end of a bar or a rivet etc.) by forging or hammering or swaging
   同义词：swage
5. the act of upsetting something
   同义词：overturn, turnover
6. an improbable and unexpected victory
   同义词：overturn

动词 upset:

1. disturb the balance or stability of
2. cause to lose one's composure
   同义词：discompose, untune, disconcert, discomfit
3. move deeply
   同义词：disturb, trouble
4. cause to overturn from an upright or normal position
   同义词：overturn, tip over, turn over, knock over, bowl over, tump over
5. form metals with a swage
   同义词：swage
6. defeat suddenly and unexpectedly

形容词 upset:

1. afflicted with or marked by anxious uneasiness or trouble or grief
   同义词：disquieted, distressed, disturbed, worried
2. thrown into a state of disarray or confusion
   同义词：broken, confused, disordered
3. used of an unexpected defeat of a team favored to win
4. mildly physically distressed
5. having been turned so that the bottom is no longer the bottom
   同义词：overturned, upturned

1. She had a major emotional upset.
   她情绪上受到了沉重的打击。
2. Her refusal to help quite upset the applecart.
   她不肯帮忙，计画也就落空了。
3. Last-minute changes caused a great deal of upset.
   出现的临时变动造成一片混乱。
4. He upset a bottle of ink.
   他打翻了一瓶墨水。
5. The news quite upset him.
   这消息使他心烦意乱。
6. He has an upset stomach.
   他胃不舒服。
7. I'm always upset when I don't get any mail.
   我接不到任何邮件时总是心烦意乱。