directly vs straight off

directly and straight off both are adverbs.

Word	Noun	Adjective	Verb	Adverb
directly	No	No	No	Yes
straight off	No	No	No	Yes

As adverbs, directly and straight off are synonyms defined as:

directly and straight off: without delay or hesitation; with no time intervening

Other synonyms of directly include at once, forthwith, immediately, instantly, like a shot, now, right away, straightaway.

directly (adverb)	straight off (adverb)
without deviation	without delay or hesitation; with no time intervening
in a forthright manner; candidly or frankly
without anyone or anything intervening
without delay or hesitation; with no time intervening