The phrase "although adequate" is correct and usable in written English.
It can be used to introduce a contrasting idea or to qualify a statement about sufficiency or acceptability.
Example: "The report was, although adequate, lacking in detail and depth."
Alternatives: "even if sufficient" or "while acceptable".
Although adequate to allow the opera to make its impact, the singing could be better.
In the past year, however, they have started worrying that the Basle ratio, although adequate in mature economies, may be insufficient in developing countries.
Although adequate CFRP anchors can fully develop the strength of CFRP strips, few recommendations for designing CFRP anchors are available.
Although adequate analgesia was provided for point B, the patient complained of moderate pain when point A was incised after local lidocaine infiltration, at the non-blocked side.
The translation of web content into Libras (Lingua Brasileira de Sinais – Brazilian Sign Language), although adequate, cannot always be implemented, due to its high cost.
Although adequate results have been attained through breast reduction with ancillary lipoplasty, the safety of this procedure has not been evaluated.
Although adequate performance of this seismic force resisting system was observed in prior earthquakes in terms of protecting buildings from collapse, the formation of plastic hinges in the beams and columns causes irreparable damage to the beam-column connections.
Although adequate for long-term planning where the average risk is the relevant parameter, such systems tend to fall short in operational and instantaneous decisions where 'average risk' is of less relevance.
But this kind of processor distribution, although adequate for low and some steps of mid-level image processing, is not suitable for complex algorithms with more complex data dependencies.
Moreover, the sample size, although adequate for the objectives and the econometric approach of the analysis, did not allow the introduction of additional attributes in the econometric model considered.
Although adequate training in and familiarity with airway management are among the most important elements in emergency medicine [23], objective information on the teaching of airway management in Japanese EDs is not available.
