Main entry: indefinite
Definition: vague or not clearly defined or stated
Usage: must you be so indefinite?; amorphous blots of color having vague and indefinite edges; he would not answer so indefinite a proposal
Antonyms: definite
Definition: precise; explicit and clearly defined
Antonyms: decisive
Definition: determining or having the power to determine an outcome
Antonyms: decisive
Definition: characterized by decision and firmness
Antonyms: fixed
Definition: securely placed or fastened or set
Main entry: indefinite
Definition: not decided or not known
Usage: were indefinite about their plans; plans are indefinite
Antonyms: certain
Definition: established beyond doubt or question; definitely known
Definition: having or feeling no doubt or uncertainty; confident and assured
Definition: certain to occur; destined or inevitable