渋(しぶ)るto hesitate, to hold back, to balk, to falter, to be reluctant, to be unwilling, to begrudge, to have loose painful bowel movement, to suffer from tenesmus

to be reluctant (to do), to be unwilling (to do), to hesitate (to do), to grudge, to be tardy (in doing), to put off (doing)

to falter, to slacken, to slow down

to have a frequent urge to defecate but difficulty passing stool, to suffer from tenesmus