Staunch
Part of speech: verb
Definition: To stop the flow of (blood). To stop, check, or deter an action.
Part of speech: adjective
Definition: loyal, trustworthy, reliable, outstanding dependable, persistent
Example sentence: I love doing impressions of politicians because the task is always to imagine the private lives of these people whose job it is to project an image of staunch, unflinching leadership and grace, and that's just not how human beings, in their heart of hearts, work.
Constant
Part of speech: adjective
Definition: Unchanged through time or space; permanent.Consistently recurring over time; persistentSteady in purpose, action, feeling, etc.
Part of speech: noun
Definition: That which is permanent or invariable.A quantity that remains at a fixed value throughout a given discussion.Any property of an experiment, determined numerically, that does not change under given circumstances.An identifier that is bound to an invariant value.
Example sentence: Be slow to fall into friendship; but when thou art in, continue firm and constant.