Used to emphasize the intensity of a bad smell, more extreme than just 'smelly'. The noisome stench from the decomposing waste was overwhelming.
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Negative Connotation
Has a negative implication, often in reference to a situation or condition that is harmful or disgusting. They moved out due to the noisome fumes from the factory nearby.
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Sensory Impact
Primarily used when a foul odor strongly affects the sense of smell. The noisome air after the chemical spill caused many to wear masks.