Below are possible answers for the crossword clue Tough going.
6 letter answer(s) to tough going
ORDEAL
a primitive method of determining a person's guilt or innocence by subjecting the accused person to dangerous or painful tests believed to be under divine control; escape was usually taken as a sign of innocence
a severe or trying experience
4 letter answer(s) to tough going
TREK
a journey by ox wagon (especially an organized migration by a group of settlers)
any long and difficult trip
journey on foot, especially in the mountains; "We spent the summer trekking in the foothills of the Himalayas"
make a long and difficult journey; "They trekked towards the North Pole with sleds and skis"
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