- boral9
- boreal10
- borstal11
- botanical17
- botryoidal17
- botulinal16
- brachial17
- bracteal15
- branchial19
- breccial18
- bridal11
- bromal13
- bronchial19
- brumal14
- brutal11
- bryological23
- bubal13
- buccal17
- burghal16
- burial11
- bursal11
- butyral14
- cabal12
- cacographical30
- cacuminal21
- cadastral14
- cadential15
- caecal13
- caesural13
- calcaneal18
- calculational24
- calendal15
- calendrical21
- caliphal18
- calyceal18
- cambial17
- cameral14
- campestral20
- canal10
- cannibal17
- canonical18
- canthal14
- cantonal14
- cantorial14
- capital14
- caporal14
- capsidal16
- caracal14
- cardinal14
- cardiological24
- caricatural19
- carinal12
- carnal11
- carnassial15
- carnival17
- carousal13
- carpal13
- carpogonial21
- cartographical28
- casual11
- casuistical19
- catachrestical26
- cataclysmal24
- catamenial18
- catarrhal15
- catechetical24
- catechismal23
- categorical20
- cathedral16
- cathodal15
- caudal12
- causal11
- cecal12
- celestial14
- censorial14
- censual13
- cental11
- centennial17
- centesimal18
- central12
- centrifugal22
- centripetal19
- ceramal14
- cercarial16
- cereal10
- cerebral15
- cerebrospinal24
- ceremonial18
- cervical19
- chaetal13
- chalazal24
- chancroidal22
- chaparral18
- characterological32
- charcoal17
- chasmal16
- cheliceral20
- chemical20
- chemosurgical28
- chiasmal17
- chimerical22
- chiral12
- chirographical30
- chital12
- chlamydial23
- chloral14
- choral12
- chordal14
- chordamesodermal30
- choreal13
- chorial13
- choroidal16
- chrismal17
- chromosomal23
- chronobiological32
- chronological26
- chronometrical27
- cicatricial21
- circuital17
- circumferential30
- circumstantial26
- cisternal14
- citational15
- citral10
- citronellal18
- civilizational33
- cladodial16
- classical17
- clausal13
- claustral15
- clerical16
- cliental14
- climatal16
- climatological28
- clinal12
- clinical17
- clinicopathological39
- clitoral13
- cloacal15
- cloistral14
- clonal12
- clostridial17
- clypeal17
- coaeval15
- coal8
- coastal11
- coaxal17
- coaxial18
- coccal16
- coccygeal23
- cochineal19
- codicological27
- coeducational23
- coequal21
- coeternal14
- coeval14
- cognitional19
- cognominal21
- cohomological28
- coincidental22
- coital10
- coitional14
- collateral16
- collegial17
- collisional18
- collocational23
- colloidal16
- colloquial26
- colluvial20
- colonial14
- colorectal18
- colossal13
- colostral14
- columnal18
- comal12
- combinational25
- combinatorial24
- comical17
- comitial15
- commensal20
- commercial23
- commissarial22
- commissural22
- committal19
- commonsensical29
- commonweal24
- communal20
- communicational31
- compartmental27
- compensational26
- complemental27
- complexional31
- componential24
- compositional24
- compressional24
- computational25
- conceal15
- conceptional24
- conceptual22
- concessional21