Synonym: at sea, baffled, befuddled, bemused, bewildered, confounded, confused, deep in thought, disoriented, doomed, forgotten, helpless, lost, mazed, missed, mixed-up, preoccupied. Similar words: lose, close, closer, closet, close up, closest, close in, at a loss. Meaning: [lɔst /lɒst] 
n. people who are destined to die soon. adj. 1. no longer in your possession or control; unable to be found or recovered 2. having lost your bearings; confused as to time or place or personal identity 3. spiritually or physically doomed or destroyed 4. not gained or won 5. incapable of being recovered or regained 6. not caught with the senses or the mind 7. deeply absorbed in thought 8. no longer known; irretrievable 9. perplexed by many conflicting situations or statements; filled with bewilderment 10. unable to function; without help.
n. people who are destined to die soon. adj. 1. no longer in your possession or control; unable to be found or recovered 2. having lost your bearings; confused as to time or place or personal identity 3. spiritually or physically doomed or destroyed 4. not gained or won 5. incapable of being recovered or regained 6. not caught with the senses or the mind 7. deeply absorbed in thought 8. no longer known; irretrievable 9. perplexed by many conflicting situations or statements; filled with bewilderment 10. unable to function; without help. 
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121 The world is so big but I met you, while the world is so small that I lost you in the end.
122 They just clung to each other like two lost souls.
123 Survivors of the disaster who lost their relatives are much to be pitied.
124 Since he lost his job, he's been hanging about here.
125 The lost camper staved off death from hunger by eating birds eggs. Sentencedict.com
126 Liverpool only lost the game because the referee was biased.
127 For a whole day they searched after the lost child.
128 Many of the 100,000 or so families who lost their homes in the earthquake have still not been rehoused.
129 Her appointment was seen as a consolation prize after she lost the election.
130 We lost two or three early games in the World Cup, but we bounced back.
131 He has lost his job,and will have to be prepared to rough it for a time until he finds a new one.
132 We lost because we played badly. It's as simple as that.
133 No matter how much I feel lost and hesitated now. I need to live the way I want at last.
134 I used to think the worst feeling was losing someone you love. But, I was wrong. The worst feeling is the moment you have lost yourself.
135 The family is a constant shear flows, flow of mind wandering forever; love is like a hill endless sand, precipitation is the long-term accumulation of care; family like the night sky the Beidou, guided the lost lamb is the direction to go home.
136 My goods were lost in the fire and the insurance company will have to pay up.
137 The sandglass remembers the time we lost. The hourglass forget, we broken unease.
138 Give up is completely lost, persistence will have at least a glimmer of hope.
139 Sometimes you need to look back, otherwise you will never know what you have lost in the way of forever searching.
140 There was some confusion as to whether we had won or lost.
141 The book must be here, or else you've lost it.
142 Lost and so far from other human life, he faced a desperate struggle to stay alive.
143 He lost the next page of his speech and floundered for a few seconds.
144 His excuse for forgetting her birthday was that he had lost his diary.
145 I had lost my pen, but she conjured up another one for me from somewhere.
146 Stalin was insistent that the war would be won and lost in the machine shops.
147 He told us some cock-and-bull story about having lost all his money.
148 We had to break into the house as we had lost the key.
149 He had a poor sense of direction and soon got lost.
150 The lost book came to light after a long search.