difficult / hard, probably impossible

to change, to make different / to move or shift to a different time or place

potential of 変える (kaeru): to be changeable / passive of 変える (kaeru): to be changed

opinion / advice, a suggestion

to advise, to suggest / to admonish

rigid, stiff

stiffen

rigidity, stiffness

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