副词

1. 不知怎样;用某种方法;不知什么缘故;不知怎的
You use somehow to say that you do not know or cannot say how something was done or will be done.

2. somehow or other - see other

1. in some unspecified way or manner
or by some unspecified means

e.g. they managed somehow
he expected somehow to discover a woman who would love him
he tried to make is someway acceptable

Synonym: somewaysomewaysin some wayin some manner

2. for some unspecified reason

e.g. It doesn't seem fair somehow
he had me dead to rights but somehow I got away with it