incredibly
adv. degreeadv. to a very high degree. You use this when you want to say something is much more than usual, like being very lucky or very fast.
adv. to an extreme or exceptional degree; used as an intensifier to emphasize a quality or action. While its literal sense relates to being hard to believe, in modern usage it serves as a high-register synonym for 'very' or 'extremely'.
The movie was incredibly long but very exciting.
The rescue team worked incredibly hard to reach the stranded hikers before the storm arrived.
The architect designed an incredibly complex structure that managed to appear weightless despite the massive steel beams required to support the cantilevered roof.
From incredible + -ly.
Degree adverb — typically placed immediately before the adjective or adverb it modifies.
The food was incredible good.The food was incredibly good.Learners often use the adjective form 'incredible' to modify another adjective, but an adverb is required for this function.