efforts is a form of:

Negation



noun
1.
(The act of denying negative statement: disavowal; contradiction) ការបដិសេធ, ការក្រែក, ពាក្យប្រកែក the negation of our efforts ការធ្វើអោយទៅជាឥតប្រយោជន៍
2.
(បច្ចេកទេស) ការបដិសេធ, អវិជ្ចមានកម្ម
3.
(វេយ្យាករណ៍) The negation of a verb អវិជ្ជមានកម្ម
ENGLISH MEANING
adverb
1.
The act of denying; assertion of the nonreality or untruthfulness of anything; declaration that something is not, or has not been, or will not be; denial; -- the opposite of affirmation.
2.
Description or definition by denial, exclusion, or exception; statement of what a thing is not, or has not, from which may be inferred what it is or has.