犟 (w)

(jiàng) variant of 強|强[jiang4], stubborn; obstinate; tenacious; unbending; pig-headed

犟劲 (w)

(jiàngjìn) obstinacy; tenacity

犟劲儿 (w)

(jiàngjìnr) erhua variant of 犟勁|犟劲, obstinacy; tenacity