| 单词 | spontaneous |
| 释义 | spontaneous —spontaneously, adv. —spontaneousness, n. /spon tay"nee euhs/, adj. 1. coming or resulting from a natural impulse or tendency; without effort or premeditation; natural and unconstrained; unplanned: a spontaneous burst of applause. 2. (of a person) given to acting upon sudden impulses. 3. (of natural phenomena) arising from internal forces or causes; independent of external agencies; self-acting. 4. growing naturally or without cultivation, as plants and fruits; indigenous. 5. produced by natural process. [1650-60; < LL spontaneus, equiv. to L spont(e) willingly + -aneus (-an(us) -AN + -eus -EOUS)] Syn. 1. unpremeditated, free. See automatic, voluntary. Ant. 1. premeditated. |
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