doubtlessly

Adverb

proscribed sometimes obsolete

(sometimes proscribed) Without question; indubitably. / (obsolete) Without feeling doubt, without misgivings.

Japanese Meaning

疑いなく / 確かに、間違いなく / 迷いなく

She doubtlessly remembers the route to the cabin, so we can follow her lead.

彼女は疑いなく小屋への道を覚えているので、私たちは彼女に従うことができます。

Sense（1）

(sometimes proscribed) Without question; indubitably.

There are doubtlessly more insects than mammals.

Sense（2）

(obsolete) Without feeling doubt, without misgivings.

Some powers diuine, or els infernall, mixt

Their angry ſeedes at his conception:

For he was neuer ſprong of humaine race,

Since with the ſpirit of his fearefull pride,

He dares so doubtleſly reſolue of rule.

more doubtlessly

（ comparative ）

most doubtlessly

（ superlative ）