Languid
(of a person, manner, or gesture) displaying or having a disinclination for physical exertion or effort; slow and relaxed.
“they turned with languid movements from back to front so as to tan evenly”
Relaxed/ unhurried
Modality
the way or mode in which something exists or is done. You might often see it used with reference to diagnostic modality, which is the way in which a disease or illness is diagnosed by a doctor.
Method/ procedure
Rapine
the seizing and carrying away of something by force.
Looting
Efficacy
the ability to produce a desired or intended result.
“there is little information on the efficacy of this treatment”
Effectiveness/ successful
Imperturbable
unable to be upset or excited; calm.
“an imperturbable tranquility”
Composure
Antipathy
a deep-seated feeling of dislike; aversion.
“his fundamental antipathy to capitalism”
Hostility
Assuage
make (an unpleasant feeling) less intense.
“the letter assuaged the fears of most members”
Relieve
Laconic
(of a person, speech, or style of writing) using very few words.
“his laconic reply suggested a lack of interest in the topic”
Concise/ brief
Aver
state or assert to be the case.
“he averred that he was innocent of the allegations”
Declare/ state
Decorum
behavior in keeping with good taste and propriety.
“you exhibit remarkable modesty and decorum”
Etiquette/ propriety/ protocol