a heavy odorless colorless gas formed during respiration and by the decomposition of organic substances; absorbed from the air by plants in photosynthesis
not original; not being or productive of something fresh and unusual; "the manuscript contained unoriginal emendations"; "his life had been unoriginal, conforming completely to the given pattern"- Gwethalyn Graham
the act of drilling a hole in the earth in the hope of producing petroleum
so lacking in interest as to cause mental weariness; "a boring evening with uninteresting people"; "the deadening effect of some routine tasks"; "a dull play"; "his competent but dull performance"; "a ho-hum speaker who couldn't capture their attention"; "what an irksome task the writing of long letters is"- Edmund Burke; "tedious days on the train"; "the tiresome chirping of a cricket"- Mark Twain; "other people's dreams are dreadfully wearisome"
a piece of photographic film showing an image with black and white tones reversed
a reply of denial; "he answered in the negative"
expressing or consisting of a negation or refusal or denial
having the quality of something harmful or unpleasant; "ran a negative campaign"; "delinquents retarded by their negative outlook on life"
characterized by or displaying negation or denial or opposition or resistance; having no positive features; "a negative outlook on life"; "a colorless negative personality"; "a negative evaluation"; "a negative reaction to an advertising campaign"
less than zero; "a negative number"
reckoned in a direction opposite to that regarded as positive; "negative interest rates"
not indicating the presence of microorganisms or disease or a specific condition; "the HIV test was negative"
having a negative electric charge; "electrons are negative"