Godan verb with 'ru' ending, Intransitive verb
to run into; to collide with; to crash into; to bump against
急いだあまり私はだれか人に突き当たった。In my hurry I bumped into someone. to come to the end of (a street)
to run into (difficulties, problems, etc.); to run up against
Also written 衝き当たる【つきあたる】