Strong's Concordance G160

Original Word: αἰφνίδιος
Transliteration: aiphnídios
Phonetic Spelling: aheef-nid'-ee-os
[αἰφνίδιος] from a compound of G1 (as a negative particle) and G5316 (compare G1810) (meaning non-apparent); unexpected, i.e. (adverbially) suddenly

Usages throughout the bible

Luke 21:34 - And take heed to yourselves, lest at any time your hearts be overcharged with surfeiting, and drunkenness, and cares of this life, and so that day come upon you unawares. G160

1 Thessalonians 5:3 - For when they shall say, Peace and safety; then sudden G160 destruction cometh upon them, as travail upon a woman with child; and they shall not escape.