13-letter words containing n, o, s, u, b, t
- unobtrusively — not obtrusive; inconspicuous, unassertive, or reticent.
- unpostponable — to put off to a later time; defer: He has postponed his departure until tomorrow.
- unsmotherable — unquenchable
- unsupportable — capable of being supported; endurable; maintainable.
- within bounds — not beyond limits