- unable to bend or be penetrated under pressure; hard: trees so unyielding that they broke in the harsh north winds.
- not apt to give way under pressure; inflexible; firm: her unyielding faith.
- not compliant, submissive, or flexiblehis unyielding attitude
- not pliable or softa firm and unyielding surface
adj.1590s of persons; 1650s, of substances; from un- (1) “not” + yielding (see yield (v.)).