拼音：fáng huàn wèi rán
防患未然成语接下来以结尾的“然”为开头的下一个成语为：
然荻读书、然糠自照、然糠照薪
拼音为：ran di du shu、ran kang zi zhao、ran kang zhao xin
成语接龙为：
防患未然->然糠照薪->薪尽火传->传诵一时->时日曷丧->丧胆亡魂->魂惊胆落->落落难合->合从连衡->衡石量书->书声朗朗->朗月清风->风雨如晦->晦迹韬光->光明正大->大智如愚->愚民安知->知无不言->言简意该
fáng huàn wèi rán->rán kāng zhào xīn->xīn jìn huǒ chuán->chuán sòng yī shí->shí rì hé sàng->sàng dǎn wáng hún->hún jīng dǎn luò->luò luò nán hé->hé zòng lián héng->héng shí liàng shū->shū shēng lǎng lǎng->lǎng yuè qīng fēng->fēng yǔ rú huì->huì jì tāo guāng->guāng míng zhèng dà->dà zhì rú yú->yu min an zhi->zhī wú bù yán->yán jiǎn yì gāi
防患未然 ran 接下来的同音字成语有：
染须种齿、染丝之变、然糠照薪、燃糠自照、燃萁煮豆、染蓝涅皂、染苍染黄、然荻读书、染神乱志、染翰成章、燃眉之急、染神刻骨、然糠自照、燃萁之敏、染指垂涎、染旧作新、染风习俗、染指于鼎、燃萁煎豆
拼音为：ran xu zhong chi、ran si zhi bian、ran kang zhao xin、ran kang zi zhao、ran qi zhu dou、ran lan nie zao、ran cang ran huang、ran di du shu、ran shen luan zhi、ran han cheng zhang、ran mei zhi ji、ran shen ke gu、ran kang zi zhao、ran qi zhi min、ran zhi chui xian、ran jiu zuo xin、ran feng xi su、ran zhi yu ding、ran qi jian dou
成语接龙为：
防患未然->燃萁煮豆->斗鸡走狗->钩深索隐->殷天蔽日->日无暇晷->鬼哭神嚎->昊天罔极->季常之惧->聚讼纷纭->运开时泰->太岁头上动土->徒托空言->沿门讬钵->拨乱反治->指东话西->习与体成->乘高决水->水流花谢->挟天子以令诸侯->猴子称大王->望风而靡->弥天大谎->黄虀白饭->反水不收->手足胼胝->指山说磨->摩肩击毂->古木参天->天理不容->容头过身
fáng huàn wèi rán->rán qí zhǔ dòu->dòu jī zǒu gǒu->gōu shēn suǒ yǐn->yīn tiān bì rì->rì wú xiá guǐ->guǐ kū shén háo->hào tiān wǎng jí->jì cháng zhī jù->jù sòng fēn yún->yùn kāi shí tài->tài suì tóu shàng dòng tǔ->tú tuō kōng yán->yán mén tuō bō->bō luàn fǎn zhì->zhǐ dōng huà xī->xí yǔ tǐ chéng->chéng gāo jué shuǐ->shuǐ liú huā xiè->xié tiān zǐ yǐ lìng zhū hóu->hóu zǐ chēng dà wáng->wàng fēng ér mí->mí tiān dà huǎng->huáng jī bái fàn->fǎn shuǐ bù shōu->shǒu zú pián zhī->zhǐ shān shuō mò->mó jiān jī gǔ->gǔ mù cān tiān->tiān lǐ bù róng->róng tóu guò shēn