constrain
verbOPAL W
  /kənˈstreɪn/
  /kənˈstreɪn/
 (formal)Verb Forms
| present simple I / you / we / they constrain |    /kənˈstreɪn/   /kənˈstreɪn/  | 
| he / she / it constrains |    /kənˈstreɪnz/   /kənˈstreɪnz/  | 
| past simple constrained |    /kənˈstreɪnd/   /kənˈstreɪnd/  | 
| past participle constrained |    /kənˈstreɪnd/   /kənˈstreɪnd/  | 
| -ing form constraining |    /kənˈstreɪnɪŋ/   /kənˈstreɪnɪŋ/  | 
- [usually passive] to force somebody to do something or behave in a particular way
- be/feel constrained to do something The evidence was so compelling that he felt constrained to accept it.
 - The company said that it was constrained to raise prices.
 
Extra Examples- She was an annoying woman, but I always felt constrained to be pleasant to her.
 - They found themselves constrained to accept the proposal.
 
 - [often passive] to limit somebody/something
- be constrained (by something) Research has been constrained by a lack of funds.
 - Men and women are becoming less constrained by stereotyped roles.
 - constrain something There are a number of factors that constrain agricultural development.
 - be/feel constrained from doing something She felt constrained from continuing by the threat of losing her job.
 
 
Word OriginMiddle English: from Old French constraindre, from Latin constringere ‘bind tightly together’.