trustworthy

As an adjective trustworthy is

deserving of trust, reliable.

As adjectives the difference between trustworthy and obligable

is that trustworthy is deserving of trust, reliable while obligable is acknowledging, or complying with, obligation; trustworthy.

As an adjective trustworthy

is deserving of trust, reliable.

As an adverb trustworthily is

in a trustworthy manner.

As adjectives the difference between trustworthy and skookum

is that trustworthy is deserving of trust, reliable while skookum is (chiefly|british columbia|yukon|northwest us) excellent, impressive.

As a noun skookum is

(chiefly|among northwest coast aboriginal people) an evil spirit or woodland monster/giant.