Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun self-possession
1 sense of self-possession
Sense 1
self-control, self-possession, possession, willpower, will power, self-command, self-will -- (the trait of resolutely controlling your own behavior)
=> resoluteness, firmness, firmness of purpose, resolve, resolution -- (the trait of being resolute; "his resoluteness carried him through the battle"; "it was his unshakeable resolution to finish the work")