Emily Dickinson Lexicon

uncertain, adj. [see certain, adj.] (webplay: certain, certainty, state, sure).

1. Aimless; erratic; unpredictable; wandering.
2. Not sure; without definite knowledge.
3. Indecisive; not knowing whether; not yet having decided; hovering between two options.
4. Vague; nebulous; indistinct; puzzling; bittersweet; [fig.] nostalgic.
5. Indefinite; imprecise; unfixed bounds of; undetermined amount of.
6. Unseen; not physically manifest; [fig.] spiritual; other worldly.