unsuitable
Loading your saved state.
unsuitable
Not appropriate for a particular purpose, task, or situation, or not possessing the necessary abilities.
Diese leichten Schuhe sind für eine Wanderung im Hochgebirge völlig ungeeignet.
These lightweight shoes are completely unsuitable for a hike in the high mountains.
The word consists of the prefix 'un-' and the adjective 'geeignet' (suitable). The prefix 'un-' negates the base word, so 'ungeeignet' literally means 'not suitable'.
Dieses Werkzeug ist für die Reparatur leider völlig ungeeignet.
Unfortunately, this tool is completely unsuitable for the repair.
To express what something is not suitable for, you almost always use the preposition 'für' (for) followed by the accusative. The structure is 'ungeeignet für etwas sein' (to be unsuitable for something).
Der Kandidat war für die verantwortungsvolle Position ungeeignet.
The candidate was unsuitable for the responsible position.
To emphasize that something does not fit at all, 'ungeeignet' (unsuitable) is often combined with adverbs such as 'völlig' (completely), 'absolut' (absolutely), or 'gänzlich' (entirely).
Seine scherzhafte Bemerkung war in der ernsten Situation absolut ungeeignet.
His joking remark was absolutely unsuitable in the serious situation.
unable
Unfähig emphasizes that someone cannot do something or does not meet a specific requirement. Ungeeignet gives a more general assessment of whether a person is a good fit for a position or task; a lack of ability can be one reason. Use unfähig for actual ability and ungeeignet for overall suitability.
Er ist für die Stelle ungeeignet, weil sie regelmäßige Nachtschichten verlangt.
He is unsuitable for the position because it requires regular night shifts.
Er ist unfähig, die Maschine ohne Hilfe sicher zu bedienen.
He is unable to operate the machine safely without help.
