油断のならない

ゆだんのならない

treacherous; dangerous; untrustworthy; sneaky; cunning

油断なく

ゆだんなく

alertly, vigilantly, warily, diligently, attentively

油断

ゆだん

negligence, carelessness, inattention, unpreparedness

油断も隙もない

ゆだんもすきもない

one must constantly be on one's guard with..., one cannot be too careful of...

油ならし

あぶらならし

seasoning (cookware); baking a protective layer of oil onto the surface of cookware

断れない

ことわれない

unrefusable, undeclinable

油断大敵

ゆだんたいてき

Unpreparedness is one's greatest enemy, He that is too secure is not safe

油断禁物

ゆだんきんもつ

be on your guard!, take care!

油断させる

ゆだんさせる

to put someone off his guard, to throw someone off his guard

油断は禁物

ゆだんはきんもつ

be on your guard!, take care!

ならない

ならない

cannot help (doing, etc.), cannot resist, cannot bear not to

間断なく

かんだんなく

continuously, constantly, incessantly

他ならない

ほかならない

nothing but, none other than

儘ならない

ままならない

unable to have one's way with

只ならない

ただならない

unusual, serious

予断を許さない

よだんをゆるさない

highly unpredictable; touch and go

断らず

ことわらず

without permission

並び無い

ならびない

unparalleled, unparallelled, unequaled, unequalled, unique

直らない

なおらない

beyond repair, irreparable