undetermined

Not yet decided

Undetermined means not yet established, decided, or discovered.

A cause of death may remain undetermined pending investigation.

An undetermined number suggests the count is unknown: An undetermined number of victims were trapped in the rubble.

The word implies that determination is possible but hasn't happened—distinct from indeterminate, which suggests something may be unknowable or inherently vague.

ambiguous

vague

Unclear, ill-defined

uncertain · equivocal · ambiguous · imprecise · indistinct · unspecified · obscure · murky · hazy · fuzzy

unresolved

pending

Awaiting resolution or decision

inconclusive · outstanding · unfinished · incomplete · unanswered · hanging · awaiting · deferred · postponed · tabled

uncertain

doubtful

Uncertain of truth

hesitant · indecisive · wavering · iffy · skeptical · noncommittal · irresolute · uncommitted · on the fence · ambivalent

potential

unrealized

Not made actual

undeveloped · nascent · budding · emerging · promising · possible · prospective · incipient · embryonic · unformed

Categories
Opposites
resolution/settledness

undetermineddetermined

Firmly committed to purpose

settled · decided · fixed · resolved · established

clarity/definiteness

undetermineddefinite

Clearly established, not vague

certain · definitive · clear · known · distinct

knowledge/discovery

undeterminedascertained

Confirmed as true

discovered · known · identified · observed · verified

Family

undeterminable

Familiarity
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Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G