unwonted[un wôn′tid, -wōn′-, -wän′-, -wun′-]
- not common, usual, or habitual; rare: to speak with unwonted severity
- Archaic not accustomed or used: usually with to
Origin of unwontedun- + wonted
Not usual or accustomed: “Her unwonted breach of delicacy &ellipsis; perplexed him” (George Meredith).
(comparative more unwonted, superlative most unwonted)