Dictionary.net

being in accord with established forms and conventions and requirements (as e.g. of formal dress); "pay one's formal respects"; "formal dress"; "a formal ball"; "the requirement was only formal and often ignored"; "a formal education"

logically deductive; "formal proof"

characteristic of or befitting a person in authority; "formal duties"; "an official banquet"

being in accord with established forms and conventions and requirements (as e.g. of formal dress); "pay one's formal respects"; "formal dress"; "a formal ball"; "the requirement was only formal and often ignored"; "a formal education"

logically deductive; "formal proof"

characteristic of or befitting a person in authority; "formal duties"; "an official banquet"

See Methylal.

Belonging to the form, shape, frame, external appearance, or organization of a thing.

Belonging to the constitution of a thing, as distinguished from the matter composing it; having the power of making a thing what it is; constituent; essential; pertaining to or depending on the forms, so called, of the human intellect.

Done in due form, or with solemnity; according to regular method; not incidental, sudden or irregular; express; as, he gave his formal consent.

Devoted to, or done in accordance with, forms or rules; punctilious; regular; orderly; methodical; of a prescribed form; exact; prim; stiff; ceremonious; as, a man formal in his dress, his gait, his conversation.

Having the form or appearance without the substance or essence; external; as, formal duty; formal worship; formal courtesy, etc.

Dependent in form; conventional.

Sound; normal.

See Methylal.

Belonging to the form, shape, frame, external appearance, or organization of a thing.

Belonging to the constitution of a thing, as distinguished from the matter composing it; having the power of making a thing what it is; constituent; essential; pertaining to or depending on the forms, so called, of the human intellect.

Done in due form, or with solemnity; according to regular method; not incidental, sudden or irregular; express; as, he gave his formal consent.

Devoted to, or done in accordance with, forms or rules; punctilious; regular; orderly; methodical; of a prescribed form; exact; prim; stiff; ceremonious; as, a man formal in his dress, his gait, his conversation.

Having the form or appearance without the substance or essence; external; as, formal duty; formal worship; formal courtesy, etc.

Dependent in form; conventional.

Sound; normal.

According to custom or established rules; precise; ceremonious; conventional; essential; having the outward shape without the inward reality.

Formally.

Formally.

According to form or established mode: ceremonious: methodical: having the form only: having the power of making a thing what it is: essential: proper.

Formally.

According with established forms; ceremonial; ceremonious.

Pertaining to form as opposed to substance; outward; external.

Methylal.

According to form or established mode; methodical; strictly ceremonious: exact to affectation; done in due form; having the form without the substance; depending on customary forms; having the power of making a thing what it is; essential; proper.

Strictly ceremonious; done in due form; according to regular method; having the form or appearance without the substance or essence.

A somnifacient anesthetic, CH2, (OCH3) 2.

Methylal, methylene dimethylate, CH2 (O.CH3)2, a colorless liquid; an excellent solvent for organic substances.

Ceremonious, solemn, precise; regular, methodical; external, having the appearance but not the essence; depending upon establishment or custom.