10-letter words that end in onal
- rotational — the act of rotating; a turning around as on an axis.
- salicional — a soft-toned organ stop with a reedy quality
- solutional — the act of solving a problem, question, etc.: The situation is approaching solution.
- sponsional — relating to, involved in or entering into a sponsion
- squadronal — belonging or relating to a squadron or squadrons
- synchronal — synchronous.
- tetragonal — pertaining to or having the form of a tetragon.
- unoptional — left to one's choice; not required or mandatory: Formal dress is optional.
- unrational — agreeable to reason; reasonable; sensible: a rational plan for economic development.
- unseasonal — not characteristic or typical of a particular season; unseasonable: unseasonal April snows.
- vocational — of, relating to, or connected with a vocation or occupation: a vocational aptitude.
- volitional — the act of willing, choosing, or resolving; exercise of willing: She left of her own volition.