Osökt, unsought, unaffected, natural.
Otack, ingratitude.
Otacksam, ungrateful.
Otalig, innumerable.
Otid, i —, untimely, unseasonably.
Otillbörlig, improper, undue.
Otillfredsstäld, unsatisfied, insufficient.
Otillgänglig, inaccessible.
Otillräcklig, insufficient.
Otillräknelig, irresponsible.