rigidly (adv.)
- absolutely
- adamantly
- always
- dead
- definitely
- directly
- dourly
- enduringly
- even
- exactly
- expressly
- faithfully
- firmly
- grimly
- hardly
- immovably
- immutably
- inexorably
- inflexibly
- invariably
- just
- lastingly
- literally
- literatim
- obdurately
- permanently
- perpetually
- plumb
- point-blank
- positively
- precisely
- primly
- relentlessly
- right
- rigorously
- square
- squarely
- statically
- steadfastly
- sternly
- stiffly
- stiltedly
- straight
- strictly
- unalterably
- unchangeably
- uncompromisingly
- unerringly
- unrelentingly
- unwaveringly
- verbally
- verbatim
