Definify.com

Webster 1828 Edition

pp.

Made to reel; made to doubt and waver.

staggered

simple past tense and past participle of stagger
The drunk staggered to the end of the bar before he collapsed.

staggered ‎(comparative more staggered, superlative most staggered)

Astonished, taken aback.
referring to something that has been arranged in a way that is not uniform
The U.S. Senate holds staggered elections, with only one third of the seats being filled every two years.

astonished — see astonished