英和和英

an established invalid

The authentication was counterchallenged

a confirmed invalid

a confirmed invalid

fail to acknowledge

not proved

I haven't checked if the payment has been made.

to coddle an invalid

failure to be present

guaranteed not to fail

reject (documents) as invalid

impossible to identify

the failure to attend

Not valid without an official stamp.

not able to be ascertained

tried unsuccessfully

make invalid for use

not recognized

not liable to failure

Permission was denied

Permission was refused.

declare invalid

established irrevocably

show to be invalid

not causing disapproval

Hasn't been set

incapable of being definitely ascertained

render unsuitable for passage

the incapability of being corrupted

a proven liar