infinity; eternity; boundlessness · infinite; limitless; endless
unmanned; uninhabited; deserted; unattended · shorthanded; lack of help
invalid; void; ineffective; unavailable
without compensation; unpaid; gratuitous · free of charge; complimentary
innocence; not guilty
without permission; unauthorized · without notice; without prior warning
existence or nonexistence; presence or absence · consent or refusal; yes or no
invincible; unbeatable; matchless
absurd; unreasonable; ridiculous · rash; reckless · excessive; extreme; immoderate · very; extremely; excessively
forcibly; by force; against one's will
useless; futile; of no use · unnecessary; needless; not needed · having no business here; unrelated; unauthorized · forbidden; prohibited; not to be done
nonexistent; nothing at all; completely lacking
unemployed; without an occupation; jobless
incompetence; inability; inefficiency · incompetent person
silence; not speaking; muteness
unlabeled; unbranded; no mark
innumerable; countless; myriad
ignorance; lack of knowledge; stupidity
powerless; helpless; ineffective
unrelated; unconnected; having nothing to do with · without surviving relatives; without family ties · unrelated to Buddha's teachings; unable to be saved by Buddha
nameless; anonymous; unsigned · unknown; obscure; not famous · causeless; without just cause; unjustifiable
independent; non-partisan; unaffiliated
reckless; rash; ill-advised
pure; innocent; unspoiled · pure; unmixed; unadulterated · plain white kimono
unconditional; without conditions