obtunds

Example:His efforts were in vain; the ruling was not annulled by the stronger arguments.

Definition:To render null, void, or invalid by some countervailing influence; to counteract, neutralize, or abolish

Example:The heat put to sleep the vegetable gardens, delaying their growth.

Definition:To make something less active or responsive; to dampen

Example:The long hours of work flattened his enthusiasm for his job.

Definition:To make flat, especially by pressing or compressing; to reduce to a dull or uninteresting level; to dull, especially in force or sensitivity; to make less acute, intense, keen, or sensitive