Antonym: shallow. Similar words: deep in thought, deer, deem, indeed, commandeer, keep, weep, sheep. Meaning: [diːp] 
n. 1. the central and most intense or profound part 2. a long steep-sided depression in the ocean floor 3. literary term for an ocean. adj. 1. relatively deep or strong; affecting one deeply 2. marked by depth of thinking 3. having great spatial extension or penetration downward or inward from an outer surface or backward or laterally or outward from a center; sometimes used in combination 4. very distant in time or space 5. extreme 6. having or denoting a low vocal or instrumental range 7. strong; intense 8. relatively thick from top to bottom 9. extending relatively far inward 10. (of darkness) very intense 11. large in quantity or size 12. with head or back bent low 13. of an obscure nature 14. difficult to penetrate; incomprehensible to one of ordinary understanding or knowledge 15. exhibiting great cunning usually with secrecy. adv. 1. to a great depth 2. to an advanced time 3. to far into space.
n. 1. the central and most intense or profound part 2. a long steep-sided depression in the ocean floor 3. literary term for an ocean. adj. 1. relatively deep or strong; affecting one deeply 2. marked by depth of thinking 3. having great spatial extension or penetration downward or inward from an outer surface or backward or laterally or outward from a center; sometimes used in combination 4. very distant in time or space 5. extreme 6. having or denoting a low vocal or instrumental range 7. strong; intense 8. relatively thick from top to bottom 9. extending relatively far inward 10. (of darkness) very intense 11. large in quantity or size 12. with head or back bent low 13. of an obscure nature 14. difficult to penetrate; incomprehensible to one of ordinary understanding or knowledge 15. exhibiting great cunning usually with secrecy. adv. 1. to a great depth 2. to an advanced time 3. to far into space. 
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91. This new model of drilling machine can bore through solid rock ten metres deep.
92. The castle is on an island surrounded by a deep lake.
93. The crisis is rooted in deep rivalries between the two groups.
94. She seems unable to pull herself out of this deep slough of self-pity.
95. After a hard climb, we were rewarded by a picture-postcard vista of rolling hills under a deep blue summer sky.
96. Taishan let the soil, so it can become bigger and bigger; river is not the small streams, so it can be so deep.
97. Ploughing through the deep snow in my high boots,I finally reached the farmhouse.
98. Anna couldn't swim and was left floundering about in the deep end of the swimming-pool.
99. The thorn went deep into the flesh of my hand.
100. Deep love person hide the heart does not hang mouth.
101. She had lots of deep creases at the corners of her eyes.
102. She fidgeted in her chair as she took a deep, tremulous breath.
103. Some soldiers waited at an outpost deep in the forest.
104. A deep furrow has formed in the rock, where water has run over it for centuries.
105. The memory of it all was locked deep in my subconscious.
106. I roused up from deep sleep when the storm came suddenly.
107. Despite the deep antipathies between them, the two sides have managed to negotiate an agreement.
108. I lived deep in the country, without easy access to shops.
109. In deep snow, people should use snow tyres on their vehicles to give them better traction.
110. After such a long thirsty journey, the travelers drank deep of the fresh spring.
111. Sam walked to the deep end of the pool and dived in.
112. Dream most deep place(sentencedict.com), only then the smile is not tired.
113. The Dotens have a deep conviction that marriage is for life.
114. You make my heart smile. In such a soft and warm season, please accept my sincere blessing and deep concern for you. For our ever-lasting friendship, send sincere blessings and warm greetings to my friends whom I miss so much. Wish you a happy new year and a good fortune in the coming year when we will share our happiness, think of our good friends, and our dreams come true!
115. The water is clear and the mountain is bright. The frost comes in at night. Trees are covered with deep scarlet leaves, mixed with yellow that is light.
116. The hole is so deep you can't see the bottom.
117. A deep sense of patriotism had been implanted in him by his father.
118. We wish to express our deep regret over the passing of...
119. He took a deep breath and knocked at the door.
120. His mood of deep pessimism cannot have been leavened by his mode of transport—a black cab.
More similar words: deep in thought, deer, deem, indeed, commandeer, keep, weep, sheep, creep, steep, sweep, sleep, keep to, sleepy, keep up, keep out, keep on, keep off, keep down, keep away, sheepish, weeping, sweep up, keep out of, keep from, go to sleep, keep back, fall asleep, keep up with, keep in mind.