怪不得

no wonder! / so that's why!

bewildering / odd / strange / uncanny / devil / monster / to wonder at / to blame / quite / rather

variant of 怪[guai4]

no; not so / (bound form) not; un-

must not / may not / not to be allowed / cannot

to obtain / to get / to gain / to catch (a disease) / proper / suitable / proud / contented / to allow / to permit / ready / finished

structural particle: used after a verb (or adjective as main verb), linking it to following phrase indicating effect, degree, possibility etc

to have to / must / ought to / to need to