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Pronunciation varies by accent · noun
Any of several fuels synthesized from coal or shale etc, or fermented from grain etc..
President Jimmy Carter was proposing a major effort to increase U.S. energy independence by developing “synfuels”—liquid fuels made from coal, oil shales, and tar sands—and scientific experts had warned that this could accelerate CO₂ accumulation.
Use synfuel when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Synfuel means Any of several fuels synthesized from coal or shale etc, or fermented from grain etc..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
President Jimmy Carter was proposing a major effort to increase U.S. energy independence by developing “synfuels”—liquid fuels made from coal, oil shales, and tar sands—and scientific experts had warned that this could accelerate CO₂ accumulation.
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