即効性は期待しないで下さい。の英語

I hope you won't expect results immediately.

a lack of efficacy

Everything in nature has its uses.

the condition of being too late to do something

the state of having no effect or validity

not efficient or methodical

of no avail

That effectiveness isn't guaranteed.

not producing an intended effect

Very few are efficient.

the condition of having no result through exhausting work

The attempt was ineffectual

The attempt was fruitless of results

The attempt was attended with no results.

of something, the state of being ineffective

I think that it is more efficient.

the state of being ineffective

Talk will be of no avail

Talk will avail you nothing.

the state of being ineffective

neutralize the effect

of an effect, the state of being immediate

without [with no] effect

（契約なら）to lose effect―become invalid―lose its validity―become null and void―（約束なら）―cease to be binding―（法律なら）―become ineffective―become void―go out of force―（切符なら）―become unavailable―cease to be available

lose validity

unskillfulness resulting from a lack of efficiency

Can you not progress with good efficiency?

（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

be of no effect

make ineffective or powerless