strident
词根词缀：
stride v. 大踏步走
strid 竞争 + e → 走路如竞赛 → 大踏步走
stride n. 大步
strident adj. 尖声的，刺耳的
strid 竞争 + ent 具有…性质的，关于…的 → 竞走时发出的声音 → 尖声的，刺耳的
strife n. 竞争；冲突
strif 竞争 + e → 竞争；冲突
strive v. 努力；斗争
striv 竞争 + e → 努力；斗争
数据来源：新东方英语词汇速记大全
相关例句：
She seemed oblivious to strident British demands for the repatriation of EU powers.
她似乎浑然不觉刺耳英国要求欧盟权力遣返。
Objective critics sometimes noted that Maria Callas sounded strident and wobbly.
客观的评论家有时会认为，玛丽娅•卡拉斯（Maria Callas）的声音听起来又刺耳又发颤。
He could not help overhearing the conversation, so strident was her tone.
他没法不去听那场谈话，因为她说话的声调太刺耳了。
In an effort to catch their attention, news publishers are becoming more partisan and more strident.
为了努力吸引他们的注意力，新闻出版商正变得更具派性、也更为尖锐。
Much of his writing has a rather strident tone to it.
他的很多作品笔调相当尖刻。
( of speech or dialect) pleasing in sound; not harsh or strident.
（指语音或者方言）声音令人愉快；不刺耳或者不尖利。