unknowable

noun 0.768

unknowing

noun 0.725

inconnu

noun 0.710

unfamiliar

noun 0.709

known

noun 0.691

incognitum

noun 0.687

incognita

noun 0.671

unknowability

noun 0.666

undefinable

noun 0.666

unexpected

noun 0.663

unseen

noun 0.649

unknowingness

noun 0.649

indefinable

noun 0.641

unpredictable

noun 0.640

none

noun 0.627

nothing

noun 0.626

null

noun 0.624

dunno

noun 0.621

unavailable

noun 0.619

unique

noun 0.617

terra incognita

noun 0.615

uncertainty

noun 0.613

other

noun 0.613

undocumented

noun 0.612

mystery

noun 0.611

blank

noun 0.607

unquantifiable

noun 0.602

indeterminate

noun 0.602

unanswerable

noun 0.601

indeterminable

noun 0.599

undecided

noun 0.598

something

noun 0.597

question mark

noun 0.597

unthought

noun 0.596

indefinite

noun 0.596

unsureness

noun 0.592

no-name

noun 0.590

agnostic

noun 0.590

inscrutable

noun 0.589

unfamiliarity

noun 0.588

obscurity

noun 0.587

unforeseen

noun 0.587

know

noun 0.582

ignoramus

noun 0.581

unusual

noun 0.580

imponderable

noun 0.580

unlikely

noun 0.580

what

noun 0.580

indeterminant

noun 0.579

unconscious

noun 0.575

noun

noun 0.574

anything

noun 0.574

unidentified flying object

noun 0.571

incomprehensible

noun 0.570

generic

noun 0.570

unsigned

noun 0.569

hidden variable

noun 0.564

vague

noun 0.563

enigma

noun 0.562

ignorant

noun 0.561

stranger

noun 0.557

namelessness

noun 0.557

unc

noun 0.557

anonymous class

noun 0.557

random

noun 0.555

whatever

noun 0.554

unprepared

noun 0.554

object

noun 0.553

unknot

noun 0.552

void

noun 0.550

unawareness

noun 0.550

uncountable

noun 0.550

unclearness

noun 0.550

experimental

noun 0.549

unreachable

noun 0.549

nullable

noun 0.548

urn

noun 0.548

weird

noun 0.548

guna

noun 0.547

private

noun 0.547

unacceptable

noun 0.547

knowing

noun 0.546

anonym

noun 0.545

open problem

noun 0.545

unpredictability

noun 0.544

forgotten

noun 0.544

indiscernible

noun 0.543

null object

noun 0.542

universal

noun 0.541

new

noun 0.541

knownness

noun 0.540

unexpectedness

noun 0.540

unborn

noun 0.539

nondescript

noun 0.539

je ne sais quoi

noun 0.538

name

noun 0.538

info

noun 0.535

randomness

noun 0.534

ignorance

noun 0.534

variable

noun 0.533