1690s, from un- (1) "not" + past participle of hamper (v.).
a priest unhampered by scruple
an outlet for healthy and unhampered action
the new stock market was unhampered by tradition
this would give black people the opportunity to live unhampered by racism
unhampered dissemination of news
unguarded
unguent
unguided
ungulate
unhallowed
unhampered
unhand
unhappily
unhappiness
unhappy
unharmed