英和和英

an act of disagreeing

an unenlightened state

unfamiliar

not made known

in spite of oneself

the quality of having an unconcerned air

of being unfamiliar

the condition of not receiving a letter from someone

a dirty thing

I can not say for certain

profess ignorance

a state of being insincere

I don't even know.

I know nothing

I have no means of knowing it.

It is not so

a thing that is extraordinary

an unused thing

perceive what is not there

He is an utter stranger―a complete stranger―a perfect stranger―to me.

of a person, the state of not knowing something

（風説）an unfounded rumour―a groundless rumour―（説）―an ill-grounded theory―（報）―unauthentic news―mythical information

I don't know who it is.

the condition of something being shapeless

the condition of being unsatisfied

not knowing or perceiving

I don't know.

of an action, to be in vain

not recognized

not done