13-letter words containing b, o, n, u, s, 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