decide against something Definition

decide
verb decided, deciding

1. To settle something; to make the final result of something certain.

Thesaurus: choose, select, pick, opt, elect.
2. To make someone decide in a certain way.
3. To make a formal judgement about something.

Thesaurus: conclude, establish, determine, resolve, make up one's mind, settle.

Idiom: decide to do something

To establish an intention of doing it.
Example: decided to leave early

Etymology: 14c: from Latin decidere to cut down, settle.

Phrasal Verb: decide against something

To reject it as an intention or course of action.

Phrasal Verb: decide on or about something

To establish an intention or course of action regarding it.