Official.
Relating to mere manipulation and construction of strings of symbols, without regard to their meaning.
Relating to formation.
Organized; well-structured and planned.
Being in accord with established forms.
Relating to the form or structure of something.
Ceremonial or traditional.
Proper, according to strict etiquette; not casual.
An event with a formal dress code.
Formalin.
A formal parameter.
An evening gown.
An acetal formed from formaldehyde.
To render unsteady, removing balance.
Inconstant in purpose, or volatile in behavior.
Lacking regularity or uniformity.
Not held firmly in position, physically unstable.