From Longman Dictionary of Contemporary Englishthink nothing of doing somethingthink nothing of doing somethingEASYto think that a particular activity is normal or easy, even though other people think it is unusual or difficult He thinks nothing of staying up all night in casinos. → think
Examples from the Corpus
think nothing of doing something• He'd think nothing of checking up on a fellow's credentials.• He thought nothing of playing in ten or eleven consecutive events.• He would think nothing of walking up and hugging you.• I thought nothing of it, just that whoever closed the house up had overlooked it.• She just found it hard to be owned by customers; men especially thought nothing of appraising her through her clothes.• The Human Piranha, a Harvard graduate, thought nothing of it.• They have been in the middle of war and think nothing of hearing shooting all round them.• When she was young enough to travel alone and think nothing of it. 