瞬間的

1. Origins, structure, and basic meaning

• Structure: 瞬間的, read しゅんかんてき, is built from a very brief moment 瞬間 plus the property-forming suffix 的.
• Basic usage: It modifies a very brief action as in 瞬間的に垂れ下がる, or a noun as in 瞬間的な判断.

2. Common pitfalls and similar expressions

• Grammar and combinations
  • Use 瞬間的に before a verb and 瞬間的な before a noun; it contrasts with a state continuing over a long period.