Synonym: compelling, compulsory, essential, exigent, imperative, important, needed, obligatory, required, urgent. Similar words: incessant, recessive, recession, adversary, essay, anniversary, go to pieces, access. Meaning: ['nesɪsərɪ /-srɪ] 
n. anything indispensable. adj. 1. absolutely essential 2. unavoidably determined by prior circumstances.
n. anything indispensable. adj. 1. absolutely essential 2. unavoidably determined by prior circumstances. 
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121. Jed could deputise for Stewart, if necessary.
122. Death is the necessary end of life.
123. It is necessary to use extreme caution with chemicals.
124. It may be necessary to buy a new one.
125. Changes can easily be made where necessary.
125. Wish you can benefit from our online sentence dictionary and make progress day by day!
126. We shall take whatever actions are necessary.
127. The police were under instruction to fire if necessary.
128. It is necessary that one should obey the law.
129. I can take the car if necessary.
130. It doesn't seem necessary for us to meet.
131. It may be necessary to thin the sauce slightly.
132. How much alteration will be necessary?
133. Some alterations to our original plans might be necessary.
134. It is necessary to set down these additional rules.
135. No expense was spared in developing the necessary technology.
136. She found it necessary to reassert her position.
137. Some reforms of/to the system will be necessary.
138. To complete the cycle,(sentencedict.com) oxygen is necessary.
139. It is necessary to exercise caution when making commendations.
140. There are various ploys we can use if necessary.
141. Our government has invested the minister for trade with all the necessary powers to resolve the dispute.
142. We will use air power to protect UN peacekeepers if necessary.
143. They are only doing what is necessary to prevent wholesale destruction of vegetation.
144. Previous teaching experience is a necessary qualification for this job.
145. The Chinese Government deems it necessary to reiterate its position and policy on the following matters.
146. He wasn't good navigator, so it is necessary that the coastline remain in sight as he moved from one harbor to the next.
147. Privatisation is a necessary staging post to an open market.
148. He says he would support the use of force if the UN deemed it necessary.
149. Most countries try to preserve their international credit rating in order to secure necessary loans.
150. The loss of jobs is regarded by some as a necessary evil in the fight against inflation.
More similar words: incessant, recessive, recession, adversary, essay, anniversary, go to pieces, access, excess, process, processor, excessive, processing, accessible, in excess of, successfully, due process of law, neck, as a rule, connect, as a result, connection, as a result of, assail, vassal, pass away, fortune cookie, assault, passage, be connected with.