a. 不合时机的, 不巧的

[ adj ]
not opportune
<adj.all>
arrived at a most inopportune houran inopportune visit

Inopportune \In*op`por*tune"\, a. [L. inopportunus: cf. F.
inopportun. See {In-} not, and {Opportune}.]
Not opportune; inconvenient; unseasonable; as, an inopportune
occurrence, remark, etc.

No visit could have been more inopportune. --T. Hook.