noun a mark placed above a vowel to indicate pronunciation
adjective having or experiencing a rapid onset and short but severe course
Similarsubacute
Oppositeschronic
adjective having or demonstrating ability to recognize or draw fine distinctions
Similarperceptive
adjective of an angle; less than 90 degrees
Oppositesobtuse
adjective of critical importance and consequence
Similarcritical
Source: WordNet 3.1, Princeton University
