Extending continuously in the same direction without curving: a straight line. Having no waves or bends: straight hair. Not bent or bowed; rigid or erect: a straight, strong back. Sports Of or relating to a midair position in diving or gymnastics in which the body is held rigid without bending at the hips or knees. Perfectly horizontal or vertical; level or even: The mirror isn't straight. Direct and candid: a straight answer. Following a direct or correct method or approach; systematic: straight reasoning. Coming from a reliable source; factual: a straight tip; straight information. Showing or marked by honesty or fair-mindedness: straight business dealings. Right; correct: made sure the facts were straight in the report. Neatly arranged; orderly: The room is straight again. Uninterrupted; consecutive: sick for five straight days; their fourth straight victory. Having the parts or details in correct sequence. Games Constituting a straight in poker. Characterized by undeviating support, as of a principle or a political party: always votes a straight party line; a straight Democrat. Not deviating from what is considered socially normal, usual, or acceptable; conventional. Conventional to an extreme degree. Heterosexual. Slang Not being under the influence of alcohol or drugs. Not deviating from the normal or strict form: straight Freudian analysis. Not altered, embellished, or modified: does straight comedy. Concerned with serious or important matters: a straight drama without comedy or music. Of or relating to a straight man. Not mixed with anything else; undiluted: straight bourbon. Sold without discount regardless of the amount purchased.