not ... at all

even if ...,...cannot

very, exceedingly, awfully / (before a negative form) not at all, at all, by no means

a shirt / an undershirt, a vest

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

薄い: thin; weak; diluted

雨水: rainwater

碓氷, 碓井, 碓日, 臼井: a place name / 臼井: a surname / 雨水: the second solar term