Difference between Competent and Suitable

COMPETENT vs SUITABLE: NOUN

Properly or sufficiently qualified or capable or efficient
Legally qualified or fit to perform an act.
Answering to all requirements; adequate; sufficient; suitable; capable; legally qualified; fit.
Rightfully or properly belonging; incident; -- followed by to.
Adequate for the purpose
Having jurisdiction or authority over a particular issue or question.
Legally qualified or sufficient
Having sufficient skill, knowledge, ability, or qualifications.

Suitable for the desired purpose
Worthy of being chosen especially as a spouse
Meant or adapted for an occasion or use
Appropriate for a condition or occasion
Appropriate to a purpose or an occasion.
Capable of suiting; fitting; accordant; proper; becoming; agreeable; adapted.
Having sufficient or the required properties for a certain purpose or task; appropriate to a certain occasion.

In physical geography, of a stream, capable of transporting fragments of a given size.
In geology, having sufficient firmness and strength to transmit pressure to other strata or to lift an overlying burden, as a rock or stratum.
Answering all requirements; suitable; fit; sufficient or adequate for the purpose: as, competent supplies of food and clothing; an army competent to the defense of the kingdom.
Having ability or capacity; properly qualified: as, a competent bookkeeper.
In law, having legal capacity or qualification: as, a competent judge or court; a competent witness.
Adequate, but not outstanding or exceptional
Rightfully or lawfully belonging; pertaining by right; permissible: followed by to.
Fitted, etc. See qualified.

Synonyms Fit, meet, appropriate, apt, pertinent, seemly, eligible, consonant, corresponding, congruous.
Capable of suiting; conformable; fitting; appropriate; proper; becoming.

Proficient, Empowered, Competency, Skilled, Sane, Competence, Knowledgeable, Incompetent, Able, Workmanlike, Efficient, Adequate, Effective, Capable, Qualified

Viable, Advisable, Acceptable, Feasible, Ideal, Unsuitable, Right, Good, Eligible, Fit, Worthy, Proper, Desirable, Suited, Appropriate

Proficient, Empowered, Competency, Skilled, Sane, Competence, Knowledgeable, Incompetent, Able, Workmanlike, Efficient, Adequate, Effective, Capable, Qualified

Viable, Advisable, Acceptable, Feasible, Ideal, Unsuitable, Right, Good, Eligible, Fit, Worthy, Proper, Desirable, Suited, Appropriate

Sufficient staff are competent in operating the system.
CDD information available to competent authorities on request.
Definition Client is mentally competent when giving consent.
Are changes reviewed and authorized by competent personnel?
Trustee may apply to a court of competent.
Structural elements will be designed and constructed by competent professionals, and certified or approved by competent authorities or professionals.
These previously expressed preferences by adolescents competent to consent or the parents of minors not competent to consent must be respected by researchers.
Kruger effect is a cognitive bias that makes less competent people overestimate their abilities and more competent people underestimate them.
Interestingly, there is some discrepancy between the GMC guidance relating to competent children as opposed to competent adults.
Competent, professionally run organisations have a better chance to attract competent people.