Meaning of 腰重 in Japanese

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Definition of 腰重

こし(koshi) · コシ(koshi) 【腰】

(n) back; lower back; waist; hips; lumbar region
しばらくこの町に腰を落ちつけようと思う。
I think I'll stay put in this town for a while.
body (of hair, noodle, paper, etc.); resilience; spring

おもい(omoi) 【重い】

(adj-i) heavy; weighty; massive
heavy (feeling); depressed; gloomy; blue; uneasy
「彼の病気は重いのかな」「そうでないといいね」
"Is he seriously ill?" "I hope not."
slow; sluggish; lumbering; ponderous; clumsy
important; serious; grave
serious; severe; critical
solid; established; dignified; sensible