英和和英

ineffective

peerless―matchless―unmatched―unequalled―unrivalled―unparallelled―incomparable―unique―san pareil

useless

useless

useless

（契約）―an invalid contract―（約束）―a promise of no force―（法律）―an invalid law―an ineffective law―（演説）―an ineffective speech―（切符）―an unavailable ticket―a bad ticket

unornamented

amorphous

without affectation

without affectation

inactivity

being inactive

not of any use

without partiality

inconspicuous

unable to function

void of expression

in a formless manner

not extensile

an impassive expression

in uncharacteristic manner

powerless

lustreless―dull―dim―mat

nonstandard

incomparable―unparallelled―matchless

without reluctance

a breach of etiquette

without merit

not attributable

discontinuous